0000950170-24-056453 | 10-Q | XBRL Viewer

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Amortized cost	$ 3,333,603	$ 3,398,942
Fair Value, Held-to-maturity	$ 2,044,031	$ 2,082,881
Common stock, authorized	225,000,000	225,000,000
Common stock, shares issued	139,641,884	139,344,981
Common stock, shares outstanding	139,641,884	139,344,981

Earnings Per Share Reconciliation

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Earnings Per Share Reconciliation

7. EARNINGS PER SHARE RECONCILIATION

Basic earnings per common share are computed by dividing income allocated to common stockholders by the weighted-average number of common shares outstanding during each period. The computation of diluted earnings per common share considers the number of shares issuable upon the assumed exercise of outstanding common stock options. Antidilutive common shares are not included in the calculation of diluted earnings per common share. For the three months ended March 31, 2024 and March 31, 2023, shares deemed to be antidilutive, and thus excluded from the computation of earnings per common share, were 1,021,000 and 348,000, respectively.

The table below shows earnings per common share and diluted earnings per common share, and reconciles the numerator and denominator of both earnings per common share calculations.


	Three Months Ended March 31,
	2024		2023
	(In thousands, except per share amounts)
Earnings per common share:
Net earnings	$	48,599	$	59,270
Less: Net earnings allocated to restricted stock		324		407
Net earnings allocated to common shareholders	$	48,275	$	58,863
Weighted average shares outstanding		138,429		138,592
Basic earnings per common share	$	0.35	$	0.42

Diluted earnings per common share:
Net income allocated to common shareholders	$	48,275	$	58,863
Weighted average shares outstanding		138,429		138,592
Incremental shares from assumed exercise of outstanding options		174		361
Diluted weighted average shares outstanding		138,603		138,953
Diluted earnings per common share	$	0.35	$	0.42

Derivative Financial Instruments - Effect of Derivative Instruments on Consolidated Statement of Earnings (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 13,425	$ 0
Cash Flow Hedges [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 556	$ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense
Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 12,869	$ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Dividend Income, Operating	Interest and Dividend Income, Operating
Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 0	$ 0
Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 0	$ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income	Noninterest Income
Derivatives designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 3,865	$ 0
Derivatives designated as hedging instruments [Member] \| Cash Flow Hedges [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 178	$ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense
Derivatives designated as hedging instruments [Member] \| Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain Recognized in Income on Derivative Instruments	$ 3,687	$ 0
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Dividend Income, Operating	Interest and Dividend Income, Operating

Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

12. LEASES

The Company’s operating leases, where the Company is a lessee, include real estate, such as office space and banking centers. Lease expense for operating leases is recognized on a straight-line basis over the term of the lease and is reflected in the consolidated statement of earnings. Right-of-use (“ROU”) assets and lease liabilities are included in other assets and other liabilities, respectively, on the Company’s condensed consolidated balance sheet.

While the Company has, as a lessor, certain equipment finance leases, such leases are not material to the Company’s consolidated financial statements.

The tables below present the components of lease costs and supplemental information related to leases as of and for the periods presented.


	March 31, 2024		December 31, 2023
	(Dollars in thousands)
Lease Assets and Liabilities
ROU assets	$	20,666	$	21,655
Total lease liabilities		23,037		24,056


	Three Months Ended March 31,
	2024		2023
	(Dollars in thousands)
Lease Cost
Operating lease expense (1)	$	1,845	$	1,841
Sublease income		—		—
Total lease expense	$	1,845	$	1,841

(1)

Includes short-term leases and variable lease costs, which are immaterial.


Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases, net	$	1,864	$	1,756


	March 31, 2024			December 31, 2023
Lease Term and Discount Rate
Weighted average remaining lease term (years)		3.84			3.94
Weighted average discount rate		3.58	%		3.48	%

The Company’s lease arrangements that have not yet commenced as of March 31, 2024 and the Company’s short-term lease costs and variable lease costs, for the three months ended March 31, 2024 and 2023 are not material to the consolidated financial statements. The future lease payments required for leases that have initial or remaining non-cancelable lease terms in excess of one year as of March 31, 2024, excluding property taxes and insurance, are as follows:


	March 31, 2024
	(Dollars in thousands)
Year:
2024 (excluding the three months ended March 31, 2024)	$	5,490
2025		6,759
2026		5,524
2027		4,040
2028		2,169
Thereafter		825
Total future lease payments		24,807
Less: Imputed interest		(1,770	)
Present value of lease liabilities	$	23,037

Leases - Future lease payments required for leases that have initial or remaining non-cancelable lease terms (Detail) $ in Thousands	Mar. 31, 2024 USD ($)
2024 (excluding the three months ended March 31, 2024)	$ 5,490
2025	6,759
2026	5,524
2027	4,040
2028	2,169
Thereafter	825
Total future lease payments	24,807
Less: Imputed interest	(1,770)
Present value of lease liabilities	$ 23,037

Fair Value Information - Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets
Total cash and cash equivalents	$ 949,589	$ 281,285
Fair Value, Available-for-sale	2,837,100	2,956,125
Investment securities held-to-maturity	2,454,586	2,464,610
Total loans, net of allowance for loan losses	8,687,896	8,818,068
Deposits:
Interest-bearing	4,782,132	4,227,467
Carrying Value [Member]
Assets
Total cash and cash equivalents	949,589	281,285
Interest-earning balances due from depository institutions	12,632	8,216
Fair Value, Available-for-sale	2,837,100	2,956,125
Investment securities held-to-maturity	2,454,586	2,464,610
Total loans, net of allowance for loan losses	8,687,896	8,818,068
Deposits:
Interest-bearing	4,782,132	4,227,467
Borrowings	2,270,720	2,341,642
Carrying Value [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets		0
Carrying Value [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	38	112
Deposits:
Interest rate swaps, liabilities	38	112
Carrying Value [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	10,893
Deposits:
Interest rate swaps, liabilities	0	6,938
Carrying Value [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	789
Deposits:
Interest rate swaps, liabilities	0
Estimated Fair Value [Member]
Assets
Total cash and cash equivalents	949,589	281,285
Interest-earning balances due from depository institutions	12,632	8,216
Fair Value, Available-for-sale	2,837,100	2,956,125
Investment securities held-to-maturity	2,044,031	2,082,881
Total loans, net of allowance for loan losses	8,273,529	8,503,518
Deposits:
Interest-bearing	4,777,393	4,222,773
Borrowings	2,204,434	2,283,631
Estimated Fair Value [Member] \| Level 1 [Member]
Assets
Total cash and cash equivalents	949,589	281,285
Interest-earning balances due from depository institutions	0	0
Fair Value, Available-for-sale	0	0
Investment securities held-to-maturity	0	0
Total loans, net of allowance for loan losses	0	0
Deposits:
Interest-bearing	0	0
Borrowings	0	0
Estimated Fair Value [Member] \| Level 2 [Member]
Assets
Total cash and cash equivalents	0	0
Interest-earning balances due from depository institutions	12,632	8,216
Fair Value, Available-for-sale	2,837,100	2,956,125
Investment securities held-to-maturity	2,044,031	2,082,881
Total loans, net of allowance for loan losses	0	0
Deposits:
Interest-bearing	4,777,393	4,222,773
Borrowings	2,204,434	2,283,631
Estimated Fair Value [Member] \| Level 3 [Member]
Assets
Total cash and cash equivalents	0	0
Interest-earning balances due from depository institutions	0	0
Fair Value, Available-for-sale	0	0
Investment securities held-to-maturity	0	0
Total loans, net of allowance for loan losses	8,273,529	8,503,518
Deposits:
Interest-bearing	0	0
Borrowings	0	0
Estimated Fair Value [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets		0
Estimated Fair Value [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 1 [Member]
Assets
Interest rate swaps, assets		0
Estimated Fair Value [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 2 [Member]
Assets
Interest rate swaps, assets		0
Estimated Fair Value [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 3 [Member]
Assets
Interest rate swaps, assets		0
Estimated Fair Value [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	38	112
Deposits:
Interest rate swaps, liabilities	38	112
Estimated Fair Value [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member] \| Level 1 [Member]
Assets
Interest rate swaps, assets	0	0
Deposits:
Interest rate swaps, liabilities	0	0
Estimated Fair Value [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member] \| Level 2 [Member]
Assets
Interest rate swaps, assets	38	112
Deposits:
Interest rate swaps, liabilities	38	112
Estimated Fair Value [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member] \| Level 3 [Member]
Assets
Interest rate swaps, assets	0	0
Deposits:
Interest rate swaps, liabilities	0	0
Estimated Fair Value [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	10,893
Deposits:
Interest rate swaps, liabilities	0	6,938
Estimated Fair Value [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 1 [Member]
Assets
Interest rate swaps, assets	0
Deposits:
Interest rate swaps, liabilities	0	0
Estimated Fair Value [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 2 [Member]
Assets
Interest rate swaps, assets	10,893
Deposits:
Interest rate swaps, liabilities	0	6,938
Estimated Fair Value [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 3 [Member]
Assets
Interest rate swaps, assets	0
Deposits:
Interest rate swaps, liabilities	0	$ 0
Estimated Fair Value [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Assets
Interest rate swaps, assets	789
Deposits:
Interest rate swaps, liabilities	0
Estimated Fair Value [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 1 [Member]
Assets
Interest rate swaps, assets	0
Deposits:
Interest rate swaps, liabilities	0
Estimated Fair Value [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 2 [Member]
Assets
Interest rate swaps, assets	789
Deposits:
Interest rate swaps, liabilities	0
Estimated Fair Value [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member] \| Level 3 [Member]
Assets
Interest rate swaps, assets	0
Deposits:
Interest rate swaps, liabilities	$ 0

Other Comprehensive Income - Summary of Components of OCI (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Equity [Abstract]
Net change in fair value recorded in accumulated OCI, Before-tax	$ (35,856)	$ 40,424
Net change in fair value recorded in accumulated OCI, Tax effect	10,600	(11,951)
Net change in fair value recorded in accumulated OCI, After-tax	(25,256)	28,473
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, Before-tax	163	278
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, Tax effect	(48)	(82)
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax	115	196
Fair value hedges: Net change in fair value recorded in accumulated OCI, Before-tax	17,831	0
Fair value hedges: Net change in fair value recorded in accumulated OCI, Tax effect	(4,962)	0
Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), after Tax, Total	12,869	0
Cash flow hedges: Net change in fair value recorded in accumulated OCI, Before-tax	789	0
Cash flow hedges: Net change in fair value recorded in accumulated OCI, Tax effect	(233)	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax, Total	556	0
Net change, Before-tax	(17,073)	40,702
Net change, Tax effect	5,357	(12,033)
Other comprehensive (loss), net of tax	$ (11,716)	$ 28,669

Balance Sheet Offsetting (Tables)

3 Months Ended

Mar. 31, 2024

Text Block [Abstract]

Schedule of Balance Sheet Offsetting


	Gross Amounts Recognized in the Condensed		Gross Amounts Offset in the Condensed			Net Amounts Presented in the Condensed		Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets
	Consolidated Balance Sheets		Consolidated Balance Sheets			Consolidated Balance Sheets		Financial Instruments		Collateral Pledged			Net Amount
	(Dollars in thousands)
March 31, 2024
Financial assets:
Derivatives not designated as hedging instruments:
Interest rate swaps	$	38	$	—		$	—	$	38	$	—		$	38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—			—		10,893		—			10,893
Cash flow hedges: interest rate swaps		789		—			—		789		—			789
Total	$	11,720	$	—		$	—	$	11,720	$	—		$	11,720

Financial liabilities:
Derivatives not designated as hedging instruments:
Interest rate swaps	$	47,507	$	(47,469	)	$	38	$	47,469	$	(15,827	)	$	31,680
Derivatives designated as hedging instruments:		—		—			—		—		—			—
Fair value hedges: interest rate swaps		—		—			—		—		—			—
Cash flow hedges: interest rate swaps		—		—			—		—		—			—
Repurchase agreements		275,720		—			275,720		—		360,312			636,032
Total	$	323,227	$	(47,469	)	$	275,758	$	47,469	$	344,485		$	667,712


December 31, 2023
Financial assets:
Derivatives not designated as hedging instruments	$	112	$	—		$	—	$	112	$	—		$	112
Derivatives designated as hedging instruments		—		—			—		—		—			—
Total	$	112	$	—		$	—	$	112	$	—		$	112

Financial liabilities:
Derivatives not designated as hedging instruments	$	42,613	$	(42,501	)	$	112	$	42,501	$	(11,659	)	$	30,954
Derivatives designated as hedging instruments		6,938		—			—		6,938		—			6,938
Repurchase agreements		271,642		—			271,642		—		362,505			634,147
Total	$	321,193	$	(42,501	)	$	271,754	$	49,439	$	350,846		$	672,039

Balance Sheet Offsetting (Additional Information) (Details) - Interest Rate Swaps [Member] - USD ($)	1 Months Ended
	Jun. 30, 2023	Mar. 31, 2024
Offsetting Assets Liabilities [Line Items]
Total notional amount of the Company's swaps	$ 1,000,000,000	$ 300,000,000
Derivative, Average Remaining Maturity	4 years
Derivative, Remaining Maturity	5 years	3 years
Weighted average fixed rate	3.80%	4.20%
Derivative Notional Amount	$ 10,900,000	$ 789,000

- Definition

Nominal or face amount used to calculate payments on the derivative asset.

+ References + Details

Investment Securities - Summary of Interest Income Earned on Investment Securities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net Investment Income [Line Items]
Investment securities available-for-sale	$ 21,446	$ 19,596
Total interest income from held-to-maturity securities	13,402	13,956
Total investment income	34,848	33,552
Investment securities available-for-sale [Member]
Net Investment Income [Line Items]
Taxable	21,280	19,428
Tax-advantaged	166	168
Investment securities available-for-sale	21,446	19,596
Investment securities held-to-maturity [Member]
Net Investment Income [Line Items]
Taxable	10,984	11,507
Tax-advantaged	2,418	2,449
Total interest income from held-to-maturity securities	$ 13,402	$ 13,956

Business combination (Additional Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Common stock, shares issued	139,641,884	139,344,981
Total assets	$ 16,468,146	$ 16,020,993
Cash and cash equivalents	949,589	281,285
Premises and equipment	43,448	44,709
Bank owned life insurance (BOLI)	310,744	308,706
Other assets	145,823	127,187
Goodwill	765,822	765,822
Noninterest-bearing deposits	7,112,789	7,206,175
Interest-bearing deposits	$ 4,782,132	$ 4,227,467

Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of loans by type and origination year, according to our internal risk ratings (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 107,973	$ 651,552
2023	640,327	1,608,241
2022	1,580,443	1,402,964
2021	1,383,515	1,124,447
2020	1,093,100	668,632
Prior	3,022,358	2,453,629
Revolving loans amortized cost basis	891,029	943,285
Revolving loans converted to term loans	51,968	52,160
Total	8,770,713	8,904,910
gross charge	300
Gross charge-off prior	3,534	292
Gross Charge Offs Revolving Loans Amortized Term Loans	1
Gross charge-offs Revolving loans converted to term loans	432	113
Gross charge-offs total	4,267	405
Commercial real estate loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	55,331	451,976
2023	446,821	1,327,587
2022	1,311,212	1,152,090
2021	1,142,193	938,359
2020	918,902	554,351
Prior	2,624,299	2,146,639
Revolving loans amortized cost basis	182,840	174,935
Revolving loans converted to term loans	38,940	38,568
Total	6,720,538	6,784,505
Gross charge-off prior	2,258
Gross charge-offs total	2,258
Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3	1,274
2023	2,513	15,046
2022	12,277	24,418
2021	24,398	8,058
2020	8,066	0
Prior	0	0
Revolving loans amortized cost basis	11,549	17,938
Revolving loans converted to term loans	0	0
Total	58,806	66,734
SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	10,759	20,701
2023	19,621	49,839
2022	49,512	51,038
2021	50,594	34,090
2020	29,184	8,117
Prior	108,650	106,834
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	268,320	270,619
Gross charge-off prior	90	288
Gross charge-offs total	90	288
SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	591	699
2021	1,658	2,037
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	2,249	2,736
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	28,523	148,909
2023	144,924	144,842
2022	137,716	100,804
2021	91,905	89,295
2020	83,323	72,555
Prior	159,382	99,309
Revolving loans amortized cost basis	307,006	302,555
Revolving loans converted to term loans	10,341	11,626
Total	963,120	969,895
gross charge	300
Gross charge-off prior	1,186
Gross charge-offs Revolving loans converted to term loans	431	109
Gross charge-offs total	1,917	109
Dairy And Livestock And Agribusiness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	744
2023	432	0
2022	0	1,586
2021	2,020	931
2020	917	105
Prior	322	268
Revolving loans amortized cost basis	347,581	409,257
Revolving loans converted to term loans	352	0
Total	351,624	412,891
Municipal Lease Finance Receivables [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	193	0
2023	0	5,735
2022	5,719	25,803
2021	25,803	5,981
2020	5,733	4,267
Prior	34,584	31,804
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	72,032	73,590
SFR mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	11,528	23,037
2023	21,979	61,070
2022	60,524	43,573
2021	43,305	44,994
2020	44,745	28,593
Prior	94,086	68,277
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	308	324
Total	276,475	269,868
Consumer Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,636	4,911
2023	4,037	4,122
2022	3,483	2,953
2021	2,706	702
2020	572	644
Prior	1,035	498
Revolving loans amortized cost basis	42,053	38,600
Revolving loans converted to term loans	2,027	1,642
Total	57,549	54,072
Gross charge-off prior		4
Gross Charge Offs Revolving Loans Amortized Term Loans	1
Gross charge-offs Revolving loans converted to term loans	1	4
Gross charge-offs total	2	8
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	107,295	638,501
2023	624,422	1,593,595
2022	1,565,492	1,381,084
2021	1,356,755	1,065,424
2020	1,034,523	605,169
Prior	2,840,039	2,337,278
Revolving loans amortized cost basis	795,716	854,820
Revolving loans converted to term loans	45,154	44,899
Total	8,369,396	8,520,770
Pass [Member] \| Commercial real estate loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	54,653	447,991
2023	441,596	1,315,563
2022	1,299,240	1,133,331
2021	1,120,686	885,590
2020	866,833	497,541
Prior	2,457,881	2,041,329
Revolving loans amortized cost basis	179,725	171,223
Revolving loans converted to term loans	38,940	38,568
Total	6,459,554	6,531,136
Pass [Member] \| Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3	1,274
2023	2,513	15,046
2022	12,277	22,288
2021	22,289	8,058
2020	8,066	0
Prior	0	0
Revolving loans amortized cost basis	11,549	17,938
Revolving loans converted to term loans	0	0
Total	56,697	64,604
Pass [Member] \| SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	10,759	20,701
2023	19,621	48,212
2022	47,896	51,038
2021	50,594	29,306
2020	24,417	6,236
Prior	102,067	101,856
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	255,354	257,349
Pass [Member] \| SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	591	699
2021	1,658	2,037
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	2,249	2,736
Pass [Member] \| Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	28,523	141,080
2023	135,426	143,847
2022	136,353	100,059
2021	90,310	88,743
2020	82,495	68,352
Prior	151,348	94,027
Revolving loans amortized cost basis	296,236	289,539
Revolving loans converted to term loans	4,688	5,460
Total	925,379	931,107
Pass [Member] \| Dairy And Livestock And Agribusiness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	296
2023	0	0
2022	0	1,586
2021	685	931
2020	917	80
Prior	262	208
Revolving loans amortized cost basis	266,157	337,525
Revolving loans converted to term loans	270	0
Total	268,291	340,626
Pass [Member] \| Municipal Lease Finance Receivables [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	193	0
2023	0	5,735
2022	5,719	25,803
2021	25,803	5,981
2020	5,733	4,267
Prior	34,402	31,622
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	71,850	73,408
Pass [Member] \| SFR mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	11,528	22,248
2023	21,229	61,070
2022	60,524	43,573
2021	43,305	44,076
2020	43,832	28,049
Prior	93,044	67,750
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	273,462	266,766
Pass [Member] \| Consumer Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,636	4,911
2023	4,037	4,122
2022	3,483	2,707
2021	2,492	702
2020	572	644
Prior	1,035	486
Revolving loans amortized cost basis	42,049	38,595
Revolving loans converted to term loans	1,256	871
Total	56,560	53,038
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	678	12,307
2023	15,236	6,262
2022	6,607	18,989
2021	21,760	25,622
2020	25,625	49,639
Prior	133,332	80,928
Revolving loans amortized cost basis	89,547	82,676
Revolving loans converted to term loans	5,452	5,520
Total	298,237	281,943
Special Mention [Member] \| Commercial real estate loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	678	3,241
2023	4,556	3,897
2022	3,867	15,868
2021	18,616	19,368
2020	19,117	43,824
Prior	121,713	74,673
Revolving loans amortized cost basis	2,366	2,911
Revolving loans converted to term loans	0	0
Total	170,913	163,782
Special Mention [Member] \| Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	2,130
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	2,130
Special Mention [Member] \| SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	1,627
2022	1,616	0
2021	0	4,784
2020	4,767	1,132
Prior	3,010	1,760
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	9,393	9,303
Special Mention [Member] \| SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Special Mention [Member] \| Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	7,829
2023	9,498	738
2022	1,124	745
2021	1,595	552
2020	828	4,114
Prior	7,989	3,986
Revolving loans amortized cost basis	8,133	10,529
Revolving loans converted to term loans	5,279	5,347
Total	34,446	33,840
Special Mention [Member] \| Dairy And Livestock And Agribusiness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	448
2023	432	0
2022	0	0
2021	1,335	0
2020		25
Prior		0
Revolving loans amortized cost basis	79,044	69,232
Revolving loans converted to term loans		0
Total	80,811	69,705
Special Mention [Member] \| Municipal Lease Finance Receivables [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	182	182
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	182	182
Special Mention [Member] \| SFR mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	789
2023	750	0
2022	0	246
2021	0	0
2020	913	0
Prior	438	0
Revolving loans amortized cost basis	0	4
Revolving loans converted to term loans	0	173
Total	2,101	423
Special Mention [Member] \| Consumer Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	214	918
2020	0	544
Prior	0	327
Revolving loans amortized cost basis	4	0
Revolving loans converted to term loans	173	0
Total	391	2,578
Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	744
2023	669	8,384
2022	8,344	2,891
2021	5,000	33,401
2020	32,952	13,824
Prior	48,987	35,423
Revolving loans amortized cost basis	5,766	5,789
Revolving loans converted to term loans	1,362	1,741
Total	103,080	102,197
Substandard [Member] \| Commercial real estate loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	744
2023	669	8,127
2022	8,105	2,891
2021	2,891	33,401
2020	32,952	12,986
Prior	44,705	30,637
Revolving loans amortized cost basis	749	801
Revolving loans converted to term loans	0	0
Total	90,071	89,587
Substandard [Member] \| Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	2,109	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	2,109	0
Substandard [Member] \| SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	749
Prior	3,573	3,218
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	3,573	3,967
Substandard [Member] \| SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Substandard [Member] \| Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	257
2022	239	0
2021	0	0
2020	0	89
Prior	45	1,296
Revolving loans amortized cost basis	2,637	2,487
Revolving loans converted to term loans	374	819
Total	3,295	4,948
Substandard [Member] \| Dairy And Livestock And Agribusiness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023		0
2022	0
2021
2020
Prior	60
Revolving loans amortized cost basis	2,380
Revolving loans converted to term loans	82
Total	2,522
Substandard [Member] \| Municipal Lease Finance Receivables [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	60
Revolving loans amortized cost basis	0	2,500
Revolving loans converted to term loans	0	0
Total	0	2,560
Substandard [Member] \| SFR mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	604	200
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	308	324
Total	912	524
Substandard [Member] \| Consumer Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	12
Revolving loans amortized cost basis	0	1
Revolving loans converted to term loans	598	598
Total	598	611
Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| Commercial real estate loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| Dairy And Livestock And Agribusiness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023		0
2022	0	0
2021		0
2020		0
Prior		0
Revolving loans amortized cost basis		0
Revolving loans converted to term loans		0
Total		0
Doubtful [Member] \| Municipal Lease Finance Receivables [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| SFR mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	0	0
Doubtful [Member] \| Consumer Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving loans amortized cost basis	0	0
Revolving loans converted to term loans	0	0
Total	$ 0	$ 0

Balance Sheet Offsetting

3 Months Ended

Mar. 31, 2024

Text Block [Abstract]

Balance Sheet Offsetting

11. BALANCE SHEET OFFSETTING

Assets and liabilities relating to certain financial instruments, including, derivatives and securities sold under repurchase agreements (“repurchase agreements”), may be eligible for offset in the condensed consolidated balance sheets as permitted under accounting guidance. As noted above, our interest rate swap derivatives are subject to master netting arrangements. Our interest rate swap derivatives require the Company to pledge investment securities as collateral based on certain risk thresholds. Investment securities that have been pledged by the Company to counterparties continue to be reported in the Company’s condensed consolidated balance sheets unless the Company defaults. We offer a repurchase agreement product to our customers, which include master netting agreements that allow for the netting of collateral positions. This product, known as Citizens Sweep Manager, sells certain of our securities overnight to our customers under an agreement to repurchase them the next day. The repurchase agreements are not offset in the Company’s condensed consolidated balances.

In June 2023, fair value hedging transactions were executed in which $1 billion notional pay-fixed interest rate swaps were consummated with original maturities ranging from four to five years, wherein the Company pays a weighted average fixed rate of approximately 3.8% and receives daily SOFR. The fair value of these instruments totaled $10.9 million and were reflected as an asset on March 31, 2024.

During the first quarter of 2024, cash flow hedging transactions were executed in which $300 million notional pay-fixed interest rate swaps were consummated with maturities of three years, wherein the Company pays a weighted average fixed rate of approximately 4.2% and receives daily SOFR. The fair value of these instruments totaled $789,000 and were reflected as an asset on March 31, 2024.

Refer to Note 9 – Derivative Financial Instruments of the notes to the unaudited condensed consolidated financial statements of this report for additional information.


	Gross Amounts Recognized in the Condensed		Gross Amounts Offset in the Condensed			Net Amounts Presented in the Condensed		Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets
	Consolidated Balance Sheets		Consolidated Balance Sheets			Consolidated Balance Sheets		Financial Instruments		Collateral Pledged			Net Amount
	(Dollars in thousands)
March 31, 2024
Financial assets:
Derivatives not designated as hedging instruments:
Interest rate swaps	$	38	$	—		$	—	$	38	$	—		$	38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—			—		10,893		—			10,893
Cash flow hedges: interest rate swaps		789		—			—		789		—			789
Total	$	11,720	$	—		$	—	$	11,720	$	—		$	11,720

Financial liabilities:
Derivatives not designated as hedging instruments:
Interest rate swaps	$	47,507	$	(47,469	)	$	38	$	47,469	$	(15,827	)	$	31,680
Derivatives designated as hedging instruments:		—		—			—		—		—			—
Fair value hedges: interest rate swaps		—		—			—		—		—			—
Cash flow hedges: interest rate swaps		—		—			—		—		—			—
Repurchase agreements		275,720		—			275,720		—		360,312			636,032
Total	$	323,227	$	(47,469	)	$	275,758	$	47,469	$	344,485		$	667,712


December 31, 2023
Financial assets:
Derivatives not designated as hedging instruments	$	112	$	—		$	—	$	112	$	—		$	112
Derivatives designated as hedging instruments		—		—			—		—		—			—
Total	$	112	$	—		$	—	$	112	$	—		$	112

Financial liabilities:
Derivatives not designated as hedging instruments	$	42,613	$	(42,501	)	$	112	$	42,501	$	(11,659	)	$	30,954
Derivatives designated as hedging instruments		6,938		—			—		6,938		—			6,938
Repurchase agreements		271,642		—			271,642		—		362,505			634,147
Total	$	321,193	$	(42,501	)	$	271,754	$	49,439	$	350,846		$	672,039

Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest income:
Loans and leases, including fees	$ 116,349	$ 108,394
Investment securities:
Investment securities available-for-sale	21,446	19,596
Investment securities held-to-maturity	13,402	13,956
Total investment income	34,848	33,552
Dividends from FHLB stock	419	349
Interest-earning deposits with other institutions	6,073	491
Total interest income	157,689	142,786
Interest expense:
Deposits	21,366	5,365
Borrowings and customer repurchase agreements	23,862	11,693
Total interest expense	45,228	17,058
Net interest income before provision for credit losses	112,461	125,728
Provision for credit losses	0	1,500
Net interest income after provision for credit losses	112,461	124,228
Noninterest income:
BOLI income	3,593	1,189
Other	1,875	3,378
Total noninterest income	14,113	13,202
Noninterest expense:
Salaries and employee benefits	36,401	35,247
Occupancy and equipment	5,565	5,450
Professional services	2,255	1,696
Computer software expense	3,525	3,408
Marketing and promotion	1,630	1,715
Provision for unfunded loan commitments	0	500
Amortization of intangible assets	1,438	1,720
Other	8,957	5,145
Total noninterest expense	59,771	54,881
Earnings before income taxes	66,803	82,549
Income taxes	18,204	23,279
Net earnings	48,599	59,270
Other comprehensive (loss) income:
Unrealized (loss) gain on securities arising during the period, before tax	(17,073)	40,702
Less: Income tax benefit (expense) related to items of other comprehensive income	5,357	(12,033)
Other comprehensive (loss), net of tax	(11,716)	28,669
Comprehensive income (loss)	$ 36,883	$ 87,939
Basic earnings per common share	$ 0.35	$ 0.42
Diluted earnings per common share	$ 0.35	$ 0.42
Service Charges on Deposit Accounts [Member]
Noninterest income:
Revenue from contract with customer, including assessed tax	$ 5,036	$ 5,344
Trust and Investment Services [Member]
Noninterest income:
Revenue from contract with customer, including assessed tax	3,224	2,914
Bankcard Services [Member]
Noninterest income:
Revenue from contract with customer, including assessed tax	$ 385	$ 377

Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Balance and Activity Related to Allowance for Loan Losses for Held-for-Investment Loans by Type (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 86,842	$ 85,117
Charge-offs	(4,267)	(110)
Recoveries	242	33
Provision Recorded at Acquisition		1,500
Provision for (Recapture of) Credit Losses	0
Ending Balance	82,817	86,540
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	69,466	64,806
Charge-offs	(2,258)	0
Recoveries	0	0
Provision Recorded at Acquisition		2,311
Provision for (Recapture of) Credit Losses	2,237
Ending Balance	69,445	67,117
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,277	1,702
Charge-offs	0	0
Recoveries	3	3
Provision Recorded at Acquisition		(31)
Provision for (Recapture of) Credit Losses	16
Ending Balance	1,296	1,674
Small Business Administration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,679	2,809
Charge-offs	(90)	(94)
Recoveries	63	12
Provision Recorded at Acquisition		2
Provision for (Recapture of) Credit Losses	(121)
Ending Balance	2,531	2,729
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	9,116	10,206
Charge-offs	(1,917)	(16)
Recoveries	176	14
Provision Recorded at Acquisition		(1,241)
Provision for (Recapture of) Credit Losses	(2,316)
Ending Balance	5,059	8,963
Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	3,098	4,400
Charge-offs	0	0
Recoveries	0	4
Provision Recorded at Acquisition		366
Provision for (Recapture of) Credit Losses	154
Ending Balance	3,252	4,770
Municipal Lease Finance Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	210	296
Charge-offs	0	0
Recoveries	0	0
Provision Recorded at Acquisition		(13)
Provision for (Recapture of) Credit Losses	(16)
Ending Balance	194	283
SFR Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	535	366
Charge-offs	0	0
Recoveries	0	0
Provision Recorded at Acquisition		43
Provision for (Recapture of) Credit Losses	(52)
Ending Balance	483	409
Consumer and Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	461	532
Charge-offs	(2)	0
Recoveries	0	0
Provision Recorded at Acquisition		63
Provision for (Recapture of) Credit Losses	98
Ending Balance	$ 557	$ 595

Fair Value Information - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	$ 2,837,100	$ 2,956,125
Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	25,144	25,635
Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	0	0
Interest rate swaps, liabilities	275,758	271,754
Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	0	0
Interest rate swaps, liabilities	38	112
Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets		0
Interest rate swaps, liabilities	0	0
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	2,837,100	2,956,125
Fair Value Hedges [Member] \| Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	0
Interest rate swaps, liabilities	0
Cash Flow Hedges [Member] \| Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	0
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0
Total assets	0	0
Total liabilities	0	0
Fair Value on Recurring Basis [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	2,837,100
Total assets	2,848,820	2,956,237
Total liabilities	38	7,050
Fair Value on Recurring Basis [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0
Total assets	0	0
Total liabilities	0	0
Fair Value on Recurring Basis [Member] \| Municipal Bonds [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Municipal Bonds [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	25,144	25,635
Fair Value on Recurring Basis [Member] \| Municipal Bonds [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Government agency/GSE [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Government agency/GSE [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	32,640	32,253
Fair Value on Recurring Basis [Member] \| Government agency/GSE [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Residential Mortgage-backed Securities [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Residential Mortgage-backed Securities [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	2,399,107	2,507,679
Fair Value on Recurring Basis [Member] \| Residential Mortgage-backed Securities [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| CMO/REMIC - Residential [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| CMO/REMIC - Residential [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	378,894	389,362
Fair Value on Recurring Basis [Member] \| CMO/REMIC - Residential [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Other Securities [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Other Securities [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	1,315	1,196
Fair Value on Recurring Basis [Member] \| Other Securities [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	0	0
Fair Value on Recurring Basis [Member] \| Investment Securities-AFS [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale		0
Fair Value on Recurring Basis [Member] \| Investment Securities-AFS [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale		2,956,125
Fair Value on Recurring Basis [Member] \| Investment Securities-AFS [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale		0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets		0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets		112
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets		0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0	0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	38
Interest rate swaps, liabilities	38	112
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0	0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities		0
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities		6,938
Fair Value on Recurring Basis [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities		0
Fair Value on Recurring Basis [Member] \| Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	2,837,100
Total assets	2,848,820	2,956,237
Total liabilities	38	7,050
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	25,144	25,635
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Government agency/GSE [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	32,640	32,253
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	2,399,107	2,507,679
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| CMO/REMIC - Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	378,894	389,362
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale	1,315	1,196
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Investment Securities-AFS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Available-for-sale		2,956,125
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets		112
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	38
Interest rate swaps, liabilities	38	112
Fair Value on Recurring Basis [Member] \| Carrying Value [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities		$ 6,938
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	10,893
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Carrying Value [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Fair Value Hedges [Member] \| Carrying Value [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	10,893
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	789
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Carrying Value [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, liabilities	0
Fair Value on Recurring Basis [Member] \| Cash Flow Hedges [Member] \| Carrying Value [Member] \| Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps, assets	$ 789

Fair Value Information

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Information

8. FAIR VALUE INFORMATION

Fair Value Hierarchy

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.

The valuation methodologies for financial assets and liabilities measured at fair value on a recurring and non-recurring basis are described in Note 18 — Fair Value Information, included in our Annual Report on Form 10-K for the year ended December 31, 2023.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis as of the dates presented.


	Carrying Value at March 31, 2024		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Description of assets
Investment securities - AFS:
Government agency/GSE	$	32,640	$	—	$	32,640	$	—
Mortgage-backed securities		2,399,107		—		2,399,107		—
CMO/REMIC		378,894		—		378,894		—
Municipal bonds		25,144		—		25,144		—
Other securities		1,315		—		1,315		—
Total investment securities - AFS		2,837,100		—		2,837,100		—
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—		10,893		—
Cash flow hedges: interest rate swaps		789		—		789		—
Total assets	$	2,848,820	$	—	$	2,848,820	$	—
Description of liability
Derivatives not designated as hedging instruments:
Interest rate swaps	$	38	$	—	$	38	$	—
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—
Cash flow hedges: interest rate swaps		—		—		—		—
Total liabilities	$	38	$	—	$	38	$	—


	Carrying Value at December 31, 2023		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Description of assets
Investment securities - AFS:
Government agency/GSE	$	32,253	$	—	$	32,253	$	—
Mortgage-backed securities		2,507,679		—		2,507,679		—
CMO/REMIC		389,362		—		389,362		—
Municipal bonds		25,635		—		25,635		—
Other securities		1,196		—		1,196		—
Total investment securities - AFS		2,956,125		—		2,956,125		—
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—
Derivatives designated as hedging instruments:
Interest rate swaps		—		—		—		—
Total assets	$	2,956,237	$	—		2,956,237	$	—
Description of liability
Derivatives not designated as hedging instruments:
Interest rate swaps	$	112	$	—	$	112	$	—
Derivatives designated as hedging instruments:
Interest rate swaps		6,938		—		6,938		—
Total liabilities	$	7,050	$	—	$	7,050	$	—

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

We may be required to measure certain assets at fair value on a non-recurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower of cost or fair value accounting or write-downs of individual assets.

For assets measured at fair value on a non-recurring basis that were held on the balance sheet at March 31, 2024 and December 31, 2023, respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets that had losses during the period.


	Carrying Value at March 31, 2024		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Losses For the Three Months Ended March 31, 2024
	(Dollars in thousands)
Description of assets
Loans:
Commercial real estate	$	13,813	$	—	$	—	$	13,813	$	2,258
Construction		—		—		—		—		—
SBA		211		—		—		211		26
SBA - PPP		—		—		—		—		—
Commercial and industrial		4,612		—		—		4,612		16
Dairy & livestock and agribusiness		5,787		—		—		5,787		—
Municipal lease finance receivables		—		—		—		—		—
SFR mortgage		308		—		—		308		—
Consumer and other loans		—		—		—		—		—
Other real estate owned		—		—		—		—		—
Asset held-for-sale		—		—		—		—		—
Total assets	$	24,731	$	—	$	—	$	24,731	$	2,300


	Carrying Value at December 31, 2023		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Losses For the Year Ended December 31, 2023
	(Dollars in thousands)
Description of assets
Loans:
Commercial real estate	$	18,678	$	—	$	—	$	18,678	$	2,128
Construction		—		—		—		—		—
SBA		995		—		—		995		57
SBA - PPP		—		—		—		—		—
Commercial and industrial		6,092		—		—		6,092		3,510
Dairy & livestock and agribusiness		4,700		—		—		4,700		27
Municipal lease finance receivables		—		—		—		—		—
SFR mortgage		—		—		—		—		—
Consumer and other loans		—		—		—		—		—
Other real estate owned		—		—		—		—		—
Asset held-for-sale		—		—		—		—		—
Total assets	$	30,465		—		—	$	30,465	$	5,722

Fair Value of Financial Instruments

The following disclosure presents estimated fair value of our financial instruments. The estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to develop the estimates of fair value. Accordingly, the estimates presented below are not necessarily indicative of the amounts the Company may realize in a current market exchange as of March 31, 2024 and December 31, 2023, respectively. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts.


	March 31, 2024
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Assets
Total cash and cash equivalents	$	949,589	$	949,589	$	—	$	—	$	949,589
Interest-earning balances due from depository institutions		12,632		—		12,632		—		12,632
Investment securities available-for-sale		2,837,100		—		2,837,100		—		2,837,100
Investment securities held-to-maturity		2,454,586		—		2,044,031		—		2,044,031
Total loans, net of allowance for credit losses		8,687,896		—		—		8,273,529		8,273,529
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—		38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—		10,893		—		10,893
Cash flow hedges: interest rate swaps		789		—		789		—		789
Liabilities
Deposits:
Interest-bearing	$	4,782,132	$	—	$	4,777,393	$	—	$	4,777,393
Borrowings		2,270,720		—		2,204,434		—		2,204,434
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—		38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—		—
Cash flow hedges: interest rate swaps		—		—		—		—		—


	December 31, 2023
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Assets
Total cash and cash equivalents	$	281,285	$	281,285	$	—	$	—	$	281,285
Interest-earning balances due from depository institutions		8,216		—		8,216		—		8,216
Investment securities available-for-sale		2,956,125		—		2,956,125		—		2,956,125
Investment securities held-to-maturity		2,464,610		—		2,082,881		—		2,082,881
Total loans, net of allowance for credit losses		8,818,068		—		—		8,503,518		8,503,518
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—		112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—		—
Liabilities
Deposits:
Interest-bearing	$	4,227,467	$	—	$	4,222,773	$	—	$	4,222,773
Borrowings		2,341,642		—		2,283,631		—		2,283,631
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—		112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		6,938		—		6,938		—		6,938

The fair value estimates presented herein are based on pertinent information available to management as of March 31, 2024 and December 31, 2023. Although management is not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since that date, and therefore, current estimates of fair value may differ significantly from the amounts presented above.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Investment Securities - Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, Amortized Cost, Held-to-maturity	$ 3,565
Due after one year through five years, Amortized Cost, Held-to-maturity	52,525
Due after five years through ten years, Amortized Cost, Held-to-maturity	317,491
Due after ten years, Amortized Cost, Held-to-maturity	2,081,005
Total Held-to-maturity, Debt Maturities, Amortized Cost Basis	2,454,586
Due in one year or less, Fair Value, Held-to-maturity	3,554
Due after one year through five years, Fair Value, Held-to-maturity	50,505
Due after five years through ten years, Fair Value, Held-to-maturity	280,289
Due after ten years, Fair Value, Held-to-maturity	1,709,683
Total, Held-to-maturity, Fair Value	2,044,031
Due in one year or less, Amortized Cost, Available-for-sale	36,409
Due after one year through five years, Amortized Cost, Available-for-sale	264,422
Due after five years through ten years, Amortized Cost, Available-for-sale	2,519,475
Due after ten years, Amortized Cost, Available-for-sale	513,297
Amortized Cost, Available-for-sale	3,333,603	$ 3,398,942
Due in one year or less, Fair Value, Available-for-sale	36,328
Due after one year through five years, Fair Value, Available-for-sale	241,797
Due after five years through ten years, Fair Value, Available-for-sale	2,164,588
Due after ten years, Fair Value, Available-for-sale	394,387
Total Available-for-sale Securities, Debt Maturities, Available-for-sale, Fair Value	$ 2,837,100	$ 2,956,125

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities
Interest and dividends received	$ 161,187	$ 148,044
Service charges and other fees received	10,560	11,779
Interest paid	(23,092)	(17,239)
Net cash paid to vendors, employees and others	(71,181)	(72,445)
Income taxes	0	(19)
Net cash provided by operating activities	77,474	70,120
Cash Flows from Investing Activities
Proceeds (purchases) of FHLB stock, net	0	(11,070)
Net change in interest-earning balances from depository institutions	(4,416)	(2,391)
Proceeds from repayment of investment securities available-for-sale	82,060	89,465
Proceeds from maturity of investment securities available-for-sale	15,000	3
Proceeds from repayment and maturity of investment securities held-to-maturity	18,446	17,552
Purchases of investment securities held-to-maturity	(11,455)	(2,026)
Net (increase) decrease in equity investments	(1,599)	2,680
Net decrease in loan and lease finance receivables	132,281	138,709
Purchase of premises and equipment	(166)	(343)
Proceeds from BOLI death benefit	882	0
Net cash provided by investing activities	231,033	232,579
Cash Flows from Financing Activities
Net (decrease) increase in other deposits	182,120	(553,692)
Net increase (decrease) in time deposits	279,159	(10,683)
Net (decrease) increase in other borrowings	(75,000)	410,000
Net increase (decrease) in customer repurchase agreements	4,078	(75,196)
Cash dividends on common stock	(28,030)	(28,091)
Repurchase of common stock	(2,573)	(21,036)
Proceeds from exercise of stock options	43	72
Net cash provided by (used in) financing activities	359,797	(278,626)
Net increase in cash and cash equivalents	668,304	24,073
Cash and cash equivalents, beginning of period	281,285	203,461
Cash and cash equivalents, end of period	949,589	227,534
Reconciliation of Net Earnings to Net Cash Provided by Operating Activities
Net earnings	48,599	59,270
Adjustments to reconcile net earnings to net cash provided by operating activities:
Increase in BOLI	(3,593)	(1,189)
Net amortization of premiums and discounts on investment securities	4,142	4,635
Accretion of discount for acquired loans, net	(1,042)	(1,102)
Provision for credit losses	0	1,500
Provision for unfunded loan commitments	0	500
Valuation allowance on other real estate owned	28	0
Stock-based compensation	2,386	2,284
Depreciation and amortization, net	3,092	4,448
Change in other assets and liabilities	23,862	(226)
Total adjustments	28,875	10,850
Net cash provided by operating activities	77,474	70,120
Supplemental Disclosure of Non-cash Investing Activities
Transfer of loans to other real estate owned	$ 675	$ 0

Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Financial Effect of the Loan Activity (Details)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Commercial Real Estate [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description	Added a weighted-average 1.3 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Financing receivable, modified, weighted average term	1 year 3 months 18 days	1 year 1 month 6 days
Commercial Real Estate [Member] \| Principal Forgiveness [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description		Added a weighted-average 1.1 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and Industrial [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description	Added a weighted-average 0.7 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Financing receivable, modified, weighted average term	8 months 12 days
Commercial and Industrial [Member] \| Principal Forgiveness [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description		Added a weighted-average 0.8 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Financing receivable, modified, weighted average term		9 months 18 days
Dairy & Livestock and Agribusiness [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description	Added a weighted-average 0.6 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Financing receivable, modified, weighted average term	7 months 6 days
Dairy & Livestock and Agribusiness [Member] \| Principal Forgiveness [Member]
Financing Receivable, Modified [Line Items]
Financing receivable, modified, weighted average term, description		Added a weighted-average 1.2 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Financing receivable, modified, weighted average term		1 year 2 months 12 days

Investment Securities (Tables)

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Cost and Estimated Fair Value of Investment Securities


	March 31, 2024
	Amortized Cost		Gross Unrealized Holding Gain		Gross Unrealized Holding Loss			Fair Value		Total Percent
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,644	$	—	$	(4	)	$	32,640		1.15	%
Mortgage-backed securities		2,766,695		25		(367,613	)		2,399,107		84.56	%
CMO/REMIC		495,576		—		(116,682	)		378,894		13.35	%
Municipal bonds		26,480		36		(1,372	)		25,144		0.89	%
Other securities		1,315		—		—			1,315		0.05	%
Unallocated portfolio layer fair value basis adjustments (1)		10,893		—		(10,893	)		—		0.00	%
Total available-for-sale securities	$	3,333,603	$	61	$	(496,564	)	$	2,837,100		100.00	%
Investment securities held-to-maturity:
Government agency/GSE	$	526,752	$	—	$	(103,672	)	$	423,080		21.46	%
Mortgage-backed securities		652,864		—		(109,336	)		543,528		26.60	%
CMO/REMIC		798,226		—		(162,528	)		635,698		32.52	%
Municipal bonds		465,289		2,223		(37,242	)		430,270		18.96	%
Other securities		11,455		—		—			11,455		0.46	%
Total held-to-maturity securities	$	2,454,586	$	2,223	$	(412,778	)	$	2,044,031		100.00	%


	December 31, 2023
	Amortized Cost			Gross Unrealized Holding Gain		Gross Unrealized Holding Loss			Fair Value		Total Percent
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,229		$	24	$	—		$	32,253		1.09	%
Mortgage-backed securities		2,843,744			42		(336,107	)		2,507,679		84.83	%
CMO/REMIC		502,234			—		(112,872	)		389,362		13.17	%
Municipal bonds		26,477			46		(888	)		25,635		0.87	%
Other securities		1,196			—		—			1,196		0.04	%
Unallocated portfolio layer fair value basis adjustments (1)		(6,938	)		6,938		—			—		0.00	%
Total available-for-sale securities	$	3,398,942		$	7,050	$	(449,867	)	$	2,956,125		100.00	%

Investment securities held-to-maturity:
Government agency/GSE	$	530,656		$	—	$	(97,972	)	$	432,684		21.53	%
Mortgage-backed securities		663,090			—		(97,436	)		565,654		26.90	%
CMO/REMIC		802,892			—		(156,155	)		646,737		32.58	%
Municipal bonds		467,972			3,438		(33,604	)		437,806		18.99	%
Total held-to-maturity securities	$	2,464,610		$	3,438	$	(385,167	)	$	2,082,881		100.00	%

(1)

Represents the amount of portfolio layer method basis adjustments related to AFS MBS securities hedged in a closed portfolio. Under U.S. GAAP, portfolio layer method basis adjustments are not allocated to individual securities, however the amounts impact the unrealized gains or losses for the individual securities being hedged. Refer to Note 3 and Note 9 for additional information.

Summary of Interest Income Earned on Investment Securities

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax.


	Three Months Ended
	March 31,
	2024		2023
	(Dollars in thousands)
Investment securities available-for-sale:
Taxable	$	21,280	$	19,428
Tax-advantaged		166		168
Total interest income from available-for-sale securities		21,446		19,596
Investment securities held-to-maturity:
Taxable		10,984		11,507
Tax-advantaged		2,418		2,449
Total interest income from held-to-maturity securities		13,402		13,956
Total interest income from investment securities	$	34,848	$	33,552

Summary of Continuous Unrealized Loss Position of Securities

The following table presents the Company’s available-for-sale and held-to-maturity investment securities, by investment category, in an unrealized loss position for which an allowance for credit losses has not been recorded as of March 31, 2024 and December 31, 2023.


	March 31, 2024
	Less Than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,640	$	(4	)	$	—	$	—		$	32,640	$	(4	)
Mortgage-backed securities		22		—			2,397,803		(367,613	)		2,397,825		(367,613	)
CMO/REMIC		—		—			378,893		(116,682	)		378,893		(116,682	)
Municipal bonds		6,525		(145	)		17,743		(1,227	)		24,268		(1,372	)
Total available-for-sale securities	$	39,187	$	(149	)	$	2,794,439	$	(485,522	)	$	2,833,626	$	(485,671	)
Investment securities held-to-maturity:
Government agency/GSE	$	—	$	—		$	423,080	$	(103,672	)	$	423,080	$	(103,672	)
Mortgage-backed securities		—		—			543,529		(109,336	)		543,529		(109,336	)
CMO/REMIC		—		—			635,698		(162,528	)		635,698		(162,528	)
Municipal bonds		46,060		(649	)		289,996		(36,593	)		336,056		(37,242	)
Total held-to-maturity securities	$	46,060	$	(649	)	$	1,892,303	$	(412,129	)	$	1,938,363	$	(412,778	)


	December 31, 2023
	Less Than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	—	$	—		$	—	$	—		$	—	$	—
Mortgage-backed securities		48		—			2,506,162		(336,107	)		2,506,210		(336,107	)
CMO/REMIC		—		—			389,359		(112,872	)		389,359		(112,872	)
Municipal bonds		3,286		(17	)		18,105		(871	)		21,391		(888	)
Total available-for-sale securities	$	3,334	$	(17	)	$	2,913,626	$	(449,850	)	$	2,916,960	$	(449,867	)

Investment securities held-to-maturity:
Government agency/GSE	$	—	$	—		$	432,684	$	(97,972	)	$	432,684	$	(97,972	)
Mortgage-backed securities		—		—			565,655		(97,436	)		565,655		(97,436	)
CMO/REMIC		—		—			646,737		(156,155	)		646,737		(156,155	)
Municipal bonds		20,609		(200	)		293,467		(33,404	)		314,076		(33,604	)
Total held-to-maturity securities	$	20,609	$	(200	)	$	1,938,543	$	(384,967	)	$	1,959,152	$	(385,167	)

Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity


	March 31, 2024
	Available-for-sale				Held-to-maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
			(Dollars in thousands)
Due in one year or less	$	36,409	$	36,328	$	3,565	$	3,554
Due after one year through five years		264,422		241,797		52,525		50,505
Due after five years through ten years		2,519,475		2,164,588		317,491		280,289
Due after ten years		513,297		394,387		2,081,005		1,709,683
Total investment securities	$	3,333,603	$	2,837,100	$	2,454,586	$	2,044,031

Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606

The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the periods indicated.


	Three Months Ended March 31,
	2024		2023
	(Dollars in thousands)
Noninterest income:
In-scope of Topic 606:
Service charges on deposit accounts	$	5,036	$	5,344
Trust and investment services		3,224		2,914
Bankcard services		385		377
Other		1,875		3,378
Noninterest Income (in-scope of Topic 606)		10,520		12,013
Noninterest Income (out-of-scope of Topic 606)		3,593		1,189
Total noninterest income	$	14,113	$	13,202

Revenue Recognition

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Revenue Recognition

13. REVENUE RECOGNITION

The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the periods indicated.


	Three Months Ended March 31,
	2024		2023
	(Dollars in thousands)
Noninterest income:
In-scope of Topic 606:
Service charges on deposit accounts	$	5,036	$	5,344
Trust and investment services		3,224		2,914
Bankcard services		385		377
Other		1,875		3,378
Noninterest Income (in-scope of Topic 606)		10,520		12,013
Noninterest Income (out-of-scope of Topic 606)		3,593		1,189
Total noninterest income	$	14,113	$	13,202

Refer to Note 3 – Summary of Significant Accounting Policies and Note 23 – Revenue Recognition, included in our Annual Report on Form 10-K for the year ended December 31, 2023 for a more detailed discussion about noninterest revenue streams that are in-scope of Topic 606.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Basis of Presentation

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

2. BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements and notes thereto have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) for Form 10-Q and conform to practices within the banking industry and include all of the information and disclosures required by accounting principles generally accepted in the United States of America (“GAAP”) for interim financial reporting. The accompanying unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments), which are necessary for a fair presentation of financial results for the interim periods presented. The results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results for the full year. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements, accounting policies and financial notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed with the SEC. A summary of the significant accounting policies consistently applied in the preparation of the accompanying unaudited condensed consolidated financial statements follows.

Reclassification — Certain amounts in the prior periods’ unaudited condensed consolidated financial statements and related footnote disclosures have been reclassified to conform to the current presentation with no impact on previously reported net income or stockholders’ equity.

Derivative Financial Instruments

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

9. DERIVATIVE FINANCIAL INSTRUMENTS

Derivatives Not Designated as Hedging Instruments

The Bank is exposed to certain risks relating to its ongoing business operations and utilizes interest rate swap agreements (“swaps”) as part of its asset/liability management strategy to help manage its interest rate risk position. As of March 31, 2024, the Bank has entered into 114 interest-rate swap agreements with customers with a notional amount totaling $390.3 million. The Bank then entered into identical offsetting swaps with counterparties. The swap agreements are not designated as hedging instruments. The purpose of entering into offsetting derivatives not designated as a hedging instrument is to provide the Bank a variable-rate loan receivable and to provide the customer the financial effects of a fixed-rate loan without creating significant volatility in the Bank’s earnings.

The structure of the swaps is as follows. The Bank enters into an interest rate swap with its customers in which the Bank pays the customer a variable rate and the customer pays the Bank a fixed rate, therefore allowing customers to convert variable rate loans to fixed rate loans. At the same time, the Bank enters into a swap with a counterparty bank in which the Bank pays the counterparty a fixed rate and the counterparty in return pays the Bank a variable rate. The net effect of the transaction allows the Bank to receive interest on the loan from the customer at a variable rate based on SOFR plus a spread. The changes in the fair value of the swaps primarily offset each other and therefore should not have a significant impact on the Company’s results of operations, although the Company does incur credit and counterparty risk with respect to performance on the swap agreements by the Bank’s customer and counterparty, respectively. These instruments contain language outlining collateral pledging requirements for each counterparty, in which collateral must be posted if market value exceeds certain agreed upon threshold limits. Cash or securities are pledged as collateral. Our interest rate swap derivatives are subject to a master netting arrangement with our counterparties. None of our derivative assets and liabilities are offset in the Company’s condensed consolidated balance sheet.

We believe our risk of loss associated with our counterparty borrowers related to interest rate swaps is mitigated as the loans with swaps are underwritten to take into account potential additional exposure, although there can be no assurances in this regard since the performance of our swaps is subject to market and counterparty risk.

Derivatives Designated as Hedging Instruments

Fair Value Hedges

To manage interest rate risk on our AFS securities portfolio, we have entered into pay-fixed, receive-floating interest rate swap contracts to hedge against exposure to changes in the fair value of such securities resulting from changes in interest rates. We designate these interest rate swap contracts as fair value hedges that qualify for hedge accounting under ASC 815, Derivatives and Hedging. We elected to account for the fair value hedges using the portfolio layer method in accordance with ASU 2022-01. We record the interest rate swaps in the line items "accrued interest receivable and other assets" and "other liabilities" on our consolidated balance sheet. For qualifying fair value hedges, both the changes in the fair value of the derivative and the portion of the fair value adjustments associated with the portfolio layer attributable to the hedged risk are recognized into earnings as they occur. Derivative amounts impacting earnings are recognized consistent with the classification of the hedged item in the line item "investment securities available for sale" as part of interest income, a component of consolidated net income.

Cash Flow Hedges

To manage our interest rate risk associated with brokered CDs, FHLB advances or other fixed rate advances for specified periods, the Company enters into interest rate derivative contracts that are designated as qualifying cash flow hedges to hedge the exposure to variability in expected future cash flows attributable to changes in a contractually specified interest rates. During the first quarter of 2024, $300 million of 3-month term brokered CDs were issued and cash flow hedging transactions were also executed in which $300 million notional pay-fixed interest rate swaps were consummated with maturities of three years, wherein the Company pays a weighted average fixed rate of approximately 4.2% and receives daily SOFR.

To qualify for hedge accounting, a formal assessment is prepared to determine whether the hedging relationship, both at inception and on an ongoing basis, is expected to be highly effective in achieving offsetting cash flows attributable to the hedged risk during the term of the hedge if a cash flow hedge. At inception a statistical regression analysis is prepared to determine hedge effectiveness. At each reporting period thereafter, a statistical regression or qualitative analysis is performed to determine hedge effectiveness. If it is determined that hedge effectiveness has not been or will not continue to be highly effective, then hedge accounting ceases and any gain or loss in AOCI is recognized in earnings immediately. The cash flow hedges are recorded at fair value in other assets and other liabilities on the consolidated balance sheets with changes in fair value recorded in AOCI, net of tax. All related cash flows are reported in the operating activities section of the consolidated statement of cash flows. Amounts recorded to AOCI are reclassified into earnings in the same period in which the hedged asset or liability affects earnings and are presented in the same income statement line item as the earnings effect of the hedged asset or liability.

Balance Sheet Classification of Derivative Financial Instruments

As of March 31, 2024 and December 31, 2023, the notional amount, the location of the asset and liability, and their respective fair values, are summarized in the tables below.


	March 31, 2024
	Asset Derivatives					Liability Derivatives
	Notional		Balance Sheet Location	Fair Value		Notional		Balance Sheet Location	Fair Value
	(Dollars in thousands)
Derivatives not designated as hedging instruments:
Interest rate swaps	$	390,307	Other assets	$	38	$	390,307	Other liabilities	$	38
Total derivatives				$	38				$	38

Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps	$	1,000,000	Other assets	$	10,893			Other liabilities	$	—
Cash flow hedges: interest rate swaps			Other assets		789	$	300,000	Other liabilities		—
Total				$	11,682				$	—


	December 31, 2023
	Asset Derivatives					Liability Derivatives
	Notional		Balance Sheet Location	Fair Value		Notional		Balance Sheet Location	Fair Value
	(Dollars in thousands)
Derivatives not designated as hedging instruments:
Interest rate swaps	$	394,359	Other assets	$	112	$	394,359	Other liabilities	$	112
Total derivatives				$	112				$	112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps	$	1,000,000	Other assets	$	—			Other liabilities	$	6,938
Total				$	—				$	6,938

The Effect of Derivative Financial Instruments on the Condensed Consolidated Statements of Earnings

The following table summarizes the effect of derivative financial instruments on the condensed consolidated statements of earnings for the periods presented.


	Location of Gain Recognized in Income on Derivative Instruments	Amount of Gain Recognized in Income on Derivative Instruments
		Three Months Ended March 31,
		2024		2023
		(Dollars in thousands)
Derivatives Not Designated as Hedging Instruments:
Interest rate swaps	Other income	$	—	$	—
Total		$	—	$	—


	Location of Gain Recognized in Income on Derivative Instruments	Amount of Gains (Losses) Recognized in Interest Income on Derivative Instruments				OCI Impact on Derivatives-Gains (Losses) recorded in OCI
		Three Months Ended March 31,				Three Months Ended March 31,
		2024		2023		2024		2023
		(Dollars in thousands)				(Dollars in thousands)
Derivatives Designated as Hedging Instruments:
Fair value hedges: interest rate swaps	Interest income	$	3,687	$	—	$	12,869	$	—
Cash flow hedges: interest rate swaps	Interest expense		178		—		556		—
Total		$	3,865	$	—	$	13,425	$	—

Loans and Lease Finance Receivables and Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Summary of Components of Loans and Lease Finance Receivables, Excluding PCI Loans

The following table provides a summary of total loans and lease finance receivables by type.


	March 31, 2024			December 31, 2023
	(Dollars in thousands)

Commercial real estate	$	6,720,538		$	6,784,505
Construction		58,806			66,734
SBA		268,320			270,619
SBA - Paycheck Protection Program (PPP)		2,249			2,736
Commercial and industrial		963,120			969,895
Dairy & livestock and agribusiness		351,624			412,891
Municipal lease finance receivables		72,032			73,590
SFR mortgage		276,475			269,868
Consumer and other loans		57,549			54,072
Total loans, at amortized cost		8,770,713			8,904,910
Less: Allowance for credit losses		(82,817	)		(86,842	)
Total loans and lease finance receivables, net	$	8,687,896		$	8,818,068

Summary of Loans by Type and Origination Year, According to our Internal Risk Ratings


	Origination Year												Revolving loans amortized		Revolving loans converted to
March 31, 2024	2024		2023		2022		2021		2020		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Commercial real estate loans:
Risk Rating:
Pass	$	54,653	$	441,596	$	1,299,240	$	1,120,686	$	866,833	$	2,457,881	$	179,725	$	38,940	$	6,459,554
Special Mention		678		4,556		3,867		18,616		19,117		121,713		2,366		—		170,913
Substandard		—		669		8,105		2,891		32,952		44,705		749		—		90,071
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial real estate loans:	$	55,331	$	446,821	$	1,311,212	$	1,142,193	$	918,902	$	2,624,299	$	182,840	$	38,940	$	6,720,538
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	2,258	$	—	$	—	$	2,258

Construction loans:
Risk Rating:
Pass	$	3	$	2,513	$	12,277	$	22,289	$	8,066	$	—	$	11,549	$	—	$	56,697
Special Mention		—		—		—		—		—		—		—		—		-
Substandard		—		—		—		2,109		—		—		—		—		2,109
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Construction loans:	$	3	$	2,513	$	12,277	$	24,398	$	8,066	$	—	$	11,549	$	—	$	58,806
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SBA loans:
Risk Rating:
Pass	$	10,759	$	19,621	$	47,896	$	50,594	$	24,417	$	102,067	$	—	$	—	$	255,354
Special Mention		—		—		1,616		—		4,767		3,010		—		—		9,393
Substandard		—		—		—		—		—		3,573		—		—		3,573
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA loans:	$	10,759	$	19,621	$	49,512	$	50,594	$	29,184	$	108,650	$	—	$	—	$	268,320
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	90	$	—	$	—	$	90

SBA - PPP loans:
Risk Rating:
Pass	$	—	$	—	$	—	$	591	$	1,658	$	—	$	—	$	—	$	2,249
Special Mention		—		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA - PPP loans:	$	—	$	—	$	—	$	591	$	1,658	$	—	$	—	$	—	$	2,249
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial and industrial loans:
Risk Rating:
Pass	$	28,523	$	135,426	$	136,353	$	90,310	$	82,495	$	151,348	$	296,236	$	4,688	$	925,379
Special Mention		—		9,498		1,124		1,595		828		7,989		8,133		5,279		34,446
Substandard		—		—		239		—		—		45		2,637		374		3,295
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial and industrial loans:	$	28,523	$	144,924	$	137,716	$	91,905	$	83,323	$	159,382	$	307,006	$	10,341	$	963,120
Current YTD Period: Gross charge-offs	$	—	$	—	$	300	$	—	$	—	$	1,186	$	—	$	431	$	1,917


	Origination Year												Revolving loans amortized		Revolving loans converted to
March 31, 2024	2024		2023		2022		2021		2020		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Dairy & livestock and agribusiness loans:
Risk Rating:
Pass	$	—	$	—	$	—	$	685	$	917	$	262	$	266,157	$	270	$	268,291
Special Mention		—		432		—		1,335		—		—		79,044		—		80,811
Substandard		—		—		—		—		—		60		2,380		82		2,522
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Dairy & livestock and agribusiness loans:	$	—	$	432	$	—	$	2,020	$	917	$	322	$	347,581	$	352	$	351,624
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Municipal lease finance receivables loans:
Risk Rating:
Pass	$	193	$	—	$	5,719	$	25,803	$	5,733	$	34,402	$	—	$	—	$	71,850
Special Mention		—		—		—		—		—		182		—		—		182
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Municipal lease finance receivables loans:	$	193	$	—	$	5,719	$	25,803	$	5,733	$	34,584	$	—	$	—	$	72,032
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SFR mortgage loans:
Risk Rating:
Pass	$	11,528	$	21,229	$	60,524	$	43,305	$	43,832	$	93,044	$	—	$	—	$	273,462
Special Mention		—		750		—		—		913		438		—		—		2,101
Substandard		—		—		—		—		—		604		—		308		912
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SFR mortgage loans:	$	11,528	$	21,979	$	60,524	$	43,305	$	44,745	$	94,086	$	—	$	308	$	276,475
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer and other loans:
Risk Rating:
Pass	$	1,636	$	4,037	$	3,483	$	2,492	$	572	$	1,035	$	42,049	$	1,256	$	56,560
Special Mention		—		—		—		214		—		—		4		173		391
Substandard		—		—		—		—		—		—		—		598		598
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Consumer and other loans:	$	1,636	$	4,037	$	3,483	$	2,706	$	572	$	1,035	$	42,053	$	2,027	$	57,549
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	1	$	1	$	2

Total Loans, at amortized cost:
Risk Rating:
Pass	$	107,295	$	624,422	$	1,565,492	$	1,356,755	$	1,034,523	$	2,840,039	$	795,716	$	45,154	$	8,369,396
Special Mention		678		15,236		6,607		21,760		25,625		133,332		89,547		5,452		298,237
Substandard		—		669		8,344		5,000		32,952		48,987		5,766		1,362		103,080
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Loans at amortized cost:	$	107,973	$	640,327	$	1,580,443	$	1,383,515	$	1,093,100	$	3,022,358	$	891,029	$	51,968	$	8,770,713
Current YTD Period: Total gross charge-offs	$	—	$	—	$	300	$	—	$	—	$	3,534	$	1	$	432	$	4,267


	Origination Year												Revolving loans amortized		Revolving loans converted to
December 31, 2023	2023		2022		2021		2020		2019		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Commercial real estate loans:
Risk Rating:
Pass	$	447,991	$	1,315,563	$	1,133,331	$	885,590	$	497,541	$	2,041,329	$	171,223	$	38,568	$	6,531,136
Special Mention		3,241		3,897		15,868		19,368		43,824		74,673		2,911		—		163,782
Substandard		744		8,127		2,891		33,401		12,986		30,637		801		—		89,587
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial real estate loans:	$	451,976	$	1,327,587	$	1,152,090	$	938,359	$	554,351	$	2,146,639	$	174,935	$	38,568	$	6,784,505
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Construction loans:
Risk Rating:
Pass	$	1,274	$	15,046	$	22,288	$	8,058	$	—	$	—	$	17,938	$	—	$	64,604
Special Mention		—		—		2,130		—		—		—		—		—		2,130
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Construction loans:	$	1,274	$	15,046	$	24,418	$	8,058	$	—	$	—	$	17,938	$	—	$	66,734
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SBA loans:
Risk Rating:
Pass	$	20,701	$	48,212	$	51,038	$	29,306	$	6,236	$	101,856	$	—	$	—	$	257,349
Special Mention		—		1,627		—		4,784		1,132		1,760		—		—		9,303
Substandard		—		—		—		—		749		3,218		—		—		3,967
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA loans:	$	20,701	$	49,839	$	51,038	$	34,090	$	8,117	$	106,834	$	—	$	—	$	270,619
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	288	$	—	$	—	$	288

SBA - PPP loans:
Risk Rating:
Pass	$	—	$	—	$	699	$	2,037	$	—	$	—	$	—	$	—	$	2,736
Special Mention		—		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA - PPP loans:	$	—	$	—	$	699	$	2,037	$	—	$	—	$	—	$	—	$	2,736
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial and industrial loans:
Risk Rating:
Pass	$	141,080	$	143,847	$	100,059	$	88,743	$	68,352	$	94,027	$	289,539	$	5,460	$	931,107
Special Mention		7,829		738		745		552		4,114		3,986		10,529		5,347		33,840
Substandard		—		257		—		—		89		1,296		2,487		819		4,948
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial and industrial loans:	$	148,909	$	144,842	$	100,804	$	89,295	$	72,555	$	99,309	$	302,555	$	11,626	$	969,895
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	109	$	109


	Origination Year												Revolving loans amortized		Revolving loans converted to
December 31, 2023	2023		2022		2021		2020		2019		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Dairy & livestock and agribusiness loans:
Risk Rating:
Pass	$	296	$	—	$	1,586	$	931	$	80	$	208	$	337,525	$	—	$	340,626
Special Mention		448		—		—		—		25		—		69,232		—		69,705
Substandard		—		—		—		—		—		60		2,500		—		2,560
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Dairy & livestock and agribusiness loans:	$	744	$	—	$	1,586	$	931	$	105	$	268	$	409,257	$	—	$	412,891
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Municipal lease finance receivables loans:
Risk Rating:
Pass	$	—	$	5,735	$	25,803	$	5,981	$	4,267	$	31,622	$	—	$	—	$	73,408
Special Mention		—		—		—		—		—		182		—		—		182
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Municipal lease finance receivables loans:	$	—	$	5,735	$	25,803	$	5,981	$	4,267	$	31,804	$	—	$	—	$	73,590
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SFR mortgage loans:
Risk Rating:
Pass	$	22,248	$	61,070	$	43,573	$	44,076	$	28,049	$	67,750	$	—	$	—	$	266,766
Special Mention		789		—		—		918		544		327		—		—		2,578
Substandard		—		—		—		—		—		200		—		324		524
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SFR mortgage loans:	$	23,037	$	61,070	$	43,573	$	44,994	$	28,593	$	68,277	$	—	$	324	$	269,868
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer and other loans:
Risk Rating:
Pass	$	4,911	$	4,122	$	2,707	$	702	$	644	$	486	$	38,595	$	871	$	53,038
Special Mention		—		—		246		—		—		—		4		173		423
Substandard		—		—		—		—		—		12		1		598		611
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Consumer and other loans:	$	4,911	$	4,122	$	2,953	$	702	$	644	$	498	$	38,600	$	1,642	$	54,072
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	4	$	—	$	4	$	8

Total Loans, at amortized cost:
Risk Rating:
Pass	$	638,501	$	1,593,595	$	1,381,084	$	1,065,424	$	605,169	$	2,337,278	$	854,820	$	44,899	$	8,520,770
Special Mention		12,307		6,262		18,989		25,622		49,639		80,928		82,676		5,520		281,943
Substandard		744		8,384		2,891		33,401		13,824		35,423		5,789		1,741		102,197
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Loans at amortized cost:	$	651,552	$	1,608,241	$	1,402,964	$	1,124,447	$	668,632	$	2,453,629	$	943,285	$	52,160	$	8,904,910
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	292	$	—	$	113	$	405

Schedule of Balance and Activity Related to Allowance for Loan Losses for Held-for-Investment Loans by Type

The following tables present the balance and activity related to the allowance for credit losses for held-for-investment loans by type for the periods presented.


	Three Months Ended March 31, 2024
	Ending Balance December 31, 2023		Charge-offs			Recoveries		Provision for (Recapture of) Credit Losses			Ending Balance March 31, 2024
	(Dollars in thousands)
Commercial real estate	$	69,466	$	(2,258	)	$	—	$	2,237		$	69,445
Construction		1,277		—			3		16			1,296
SBA		2,679		(90	)		63		(121	)		2,531
Commercial and industrial		9,116		(1,917	)		176		(2,316	)		5,059
Dairy & livestock and agribusiness		3,098		—			—		154			3,252
Municipal lease finance receivables		210		—			—		(16	)		194
SFR mortgage		535		—			—		(52	)		483
Consumer and other loans		461		(2	)		—		98			557
Total allowance for credit losses	$	86,842	$	(4,267	)	$	242	$	—		$	82,817


	Three Months Ended March 31, 2023
	Ending Balance December 31, 2022		Charge-offs			Recoveries		Provision for (Recapture of) Credit Losses			Ending Balance March 31, 2023
	(Dollars in thousands)
Commercial real estate	$	64,806	$	—		$	—	$	2,311		$	67,117
Construction		1,702		—			3		(31	)		1,674
SBA		2,809		(94	)		12		2			2,729
Commercial and industrial		10,206		(16	)		14		(1,241	)		8,963
Dairy & livestock and agribusiness		4,400		—			4		366			4,770
Municipal lease finance receivables		296		—			—		(13	)		283
SFR mortgage		366		—			—		43			409
Consumer and other loans		532		—			—		63			595
Total allowance for credit losses	$	85,117	$	(110	)	$	33	$	1,500		$	86,540

Schedule of Recorded Investment in, and Aging of, Past Due and Nonaccrual Loans, Excluding PCI Loans by Class of Loans

The following table presents the recorded investment in, and the aging of, past due loans (including nonaccrual loans), by type of loans as of the dates presented.


	March 31, 2024
	30-59 Days Past Due		60-89 Days Past Due		Greater than 89 Days Past Due		Total Past Due		Loans Not Past Due		Total Loans and Financing Receivables
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	2,526	$	—	$	—	$	2,526	$	2,407,593	$	2,410,119
Non-owner occupied		11,295		5,960		10,661		27,916		4,282,503		4,310,419
Construction
Speculative (1)		—		—		—		—		52,256		52,256
Non-speculative		—		—		—		—		6,550		6,550
SBA		408		—		54		462		267,858		268,320
SBA - PPP		—		—		—		—		2,249		2,249
Commercial and industrial		6		—		2,487		2,493		960,627		963,120
Dairy & livestock and agribusiness		—		—		—		—		351,624		351,624
Municipal lease finance receivables		—		—		—		—		72,032		72,032
SFR mortgage		—		—		—		—		276,475		276,475
Consumer and other loans		—		—		—		—		57,549		57,549
Total loans at amortized cost	$	14,235	$	5,960	$	13,202	$	33,397	$	8,737,316	$	8,770,713

(1)

Speculative construction loans are generally for properties where there is no identified buyer or renter.


	December 31, 2023
	30-59 Days Past Due		60-89 Days Past Due		Greater than 89 Days Past Due		Total Past Due		Loans Not Past Due		Total Loans and Financing Receivables
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	300	$	—	$	2,505	$	2,805	$	2,430,447	$	2,433,252
Non-owner occupied		16		—		531		547		4,350,706		4,351,253
Construction
Speculative (1)		—		—		—		—		57,921		57,921
Non-speculative		—		—		—		—		8,813		8,813
SBA		—		108		969		1,077		269,542		270,619
SBA - PPP		—		—		—		—		2,736		2,736
Commercial and industrial		12		—		4,253		4,265		965,630		969,895
Dairy & livestock and agribusiness		—		—		—		—		412,891		412,891
Municipal lease finance receivables		—		—		—		—		73,590		73,590
SFR mortgage		201		—		—		201		269,667		269,868
Consumer and other loans		18		—		—		18		54,054		54,072
Total loans at amortized cost	$	547	$	108	$	8,258	$	8,913	$	8,895,997	$	8,904,910

(1)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

Amortized cost of our finance receivables and loans that are on nonaccrual status, including loans with no allowance are presented as of March 31, 2024 and December 31, 2023 by type of loan.


	March 31, 2024
	Nonaccrual with No Allowance for Credit Losses		Total Nonaccrual (1) (3)		Loans Past Due Over 89 Days Still Accruing
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	—	$	—	$	—
Non-owner occupied		10,661		10,661		—
Construction
Speculative (2)		—		—		—
Non-speculative		—		—		—
SBA		54		54		—
SBA - PPP		—		—		—
Commercial and industrial		2,727		2,727		—
Dairy & livestock and agribusiness		60		60		—
Municipal lease finance receivables		—		—		—
SFR mortgage		308		308		—
Consumer and other loans		-		-		—
Total loans at amortized cost	$	13,810	$	13,810	$	—

(1)

As of March 31, 2024, $608,000 of nonaccruing loans were current and $13.2 million were 90+ days past due.

(2)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

(3)

There were no guaranteed portion of nonaccrual SBA loans that are in process of collection.


	December 31, 2023
	Nonaccrual with No Allowance for Credit Losses		Total Nonaccrual (1)		Loans Past Due Over 89 Days Still Accruing
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	2,505	$	2,505	$	—
Non-owner occupied		548		12,935		—
Construction
Speculative (2)		—		—		—
Non-speculative		—		—		—
SBA		787		969		—
SBA - PPP		—		—		—
Commercial and industrial		908		4,509		—
Dairy & livestock and agribusiness		60		60		—
Municipal lease finance receivables		—		—		—
SFR mortgage		323		324		—
Consumer and other loans		—		—		—
Total loans at amortized cost	$	5,131	$	21,302	$	—

(1)

As of December 31, 2023, $13.0 million of nonaccruing loans were current, $16,000 were 30-59 days past due, and $8.3 million were 90+ days past due.

(2)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

Summary of Pledged Assets not Separately Reported on Statement of Financial Position

The following table presents the recorded investment in collateral-dependent loans by type of loans as of the date presented.


	March 31, 2024						Number of Loans
	Real Estate		Business Assets		Other		Dependent on Collateral
	(Dollars in thousands)
Commercial real estate	$	10,661	$	—	$	—		2
Construction		—		—		—		—
SBA		54		—		—		1
SBA - PPP		—		—		—		—
Commercial and industrial		—		2,727		—		2
Dairy & livestock and agribusiness		60		—		—		1
Municipal lease finance receivables		—		—		—		—
SFR mortgage		308		—		—		1
Consumer and other loans		—		—		—		—
Total collateral-dependent loans	$	11,083	$	2,727	$	—		7


	December 31, 2023						Number of Loans
	Real Estate		Business Assets		Other		Dependent on Collateral
	(Dollars in thousands)
Commercial real estate	$	15,440	$	—	$	—		5
Construction		—		—		—		—
SBA		749		220		—		4
SBA - PPP		—		—		—		—
Commercial and industrial		392		2,950		1,167		8
Dairy & livestock and agribusiness		60		—		—		1
Municipal lease finance receivables		—		—		—		—
SFR mortgage		324		—		—		1
Consumer and other loans		—		—		—		—
Total collateral-dependent loans	$	16,965	$	3,170	$	1,167		19

Schedule of Amortized Cost of Loans Activity

The tables below reflect the amortized cost of loans by type made to borrowers experiencing financial difficulty that were modified as of March 31, 2024 and March 31, 2023, and the financial effect of those modifications.


	Term Extension					Combination-Term Extension and Interest Rate Reduction
	Amortized Cost Basis		% of Total Class of Financing Receivables			Amortized Cost Basis		% of Total Class of Financing Receivables			Total
March 31, 2024
Commercial real estate loans	$	2,466		0.03	%	$	686		0.01	%	$	3,152
Commercial and industrial		1,644		0.02	%		242		0.00	%		1,886
Dairy & livestock and agribusiness		5,727		0.07	%		—		0.00	%		5,727
Total	$	9,837				$	928				$	10,765

March 31, 2023
Commercial real estate loans	$	1,587		0.02	%	$	—		—		$	1,587
Commercial and industrial		2,250		0.03	%		—		—			2,250
Dairy & livestock and agribusiness		1,999		0.02	%		—		—			1,999
Total	$	5,836				$	—				$	5,836

Schedule of Financial Effect of the Loan Activity



Loan Type		Financial Effect

		Term Extension
March 31, 2024
Commercial real estate loans		Added a weighted-average 1.3 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and industrial		Added a weighted-average 0.7 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Dairy & livestock and agribusiness		Added a weighted-average 0.6 years to the life of loans, which reduced monthly payment amounts for the borrowers.

		Term Extension
March 31, 2023
Commercial real estate loans		Added a weighted-average 1.1 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and industrial		Added a weighted-average 0.8 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Dairy & livestock and agribusiness		Added a weighted-average 1.2 years to the life of loans, which reduced monthly payment amounts for the borrowers.

Schedule of Recorded Investments for Past Due Loans at Amortized Cost

The following table presents the recorded investment in, and the aging of, past due loans at amortized cost (including nonaccrual loans), by type of loans, made to borrowers experiencing financial difficulty as of March 31, 2024.


	Payment Status (amortized cost basis)
	Current		30-89 Days Past Due		90+ Days Past Due
	(Dollars in thousands)
Commercial real estate loans	$	3,152	$	—	$	—
Commercial and industrial		1,886		—		—
Dairy & livestock and agribusiness		5,727		—		—
Total	$	10,765	$	—	$	—

Derivative Financial Instruments - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) Agreement	Jun. 30, 2023 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets and liabilities offset in balance sheet	$ 0
Description of Conditions Relating to Clearing of Interest rate Swaps	These instruments contain language outlining collateral pledging requirements for each counterparty, in which collateral must be posted if market value exceeds certain agreed upon threshold limits. Cash or securities are pledged as collateral
Interest-rate Swap Agreements with Customers [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest-rate swap agreements \| Agreement	114
Total notional amount of the Company's swaps	$ 390,300
Fair Value Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total notional amount of the Company's swaps		$ 1,000,000
Weighted average fixed rate		3.80%
Derivative Notional Amount		$ 10,900
Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total notional amount of the Company's swaps	$ 300,000
Weighted average fixed rate	4.20%
Cash flow hedging transactions	$ 300,000

Loans and Lease Finance Receivables and Allowance for Credit Losses

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Loans and Lease Finance Receivables and Allowance for Credit Losses

5. LOANS AND LEASE FINANCE RECEIVABLES AND ALLOWANCE FOR CREDIT LOSSES

The following table provides a summary of total loans and lease finance receivables by type.


	March 31, 2024			December 31, 2023
	(Dollars in thousands)

Commercial real estate	$	6,720,538		$	6,784,505
Construction		58,806			66,734
SBA		268,320			270,619
SBA - Paycheck Protection Program (PPP)		2,249			2,736
Commercial and industrial		963,120			969,895
Dairy & livestock and agribusiness		351,624			412,891
Municipal lease finance receivables		72,032			73,590
SFR mortgage		276,475			269,868
Consumer and other loans		57,549			54,072
Total loans, at amortized cost		8,770,713			8,904,910
Less: Allowance for credit losses		(82,817	)		(86,842	)
Total loans and lease finance receivables, net	$	8,687,896		$	8,818,068

As of March 31, 2024, 80.44% of the Company’s total loan portfolio consisted of real estate loans, with commercial real estate loans representing 76.62% of total loans. The Company’s real estate loans and construction loans are secured by real properties primarily located in California. As of March 31, 2024, $498.2 million, or 7.41% of the total commercial real estate loans included loans secured by farmland, compared to $497.7 million, or 7.34%, at December 31, 2023. The loans secured by farmland included $121.4 million for loans secured by dairy & livestock land and $376.8 million secured by agricultural land at March 31, 2024, compared to $122.4 million for loans secured by dairy & livestock land and $375.3 million for loans secured by agricultural land at December 31, 2023. As of March 31, 2024, dairy & livestock and agribusiness loans of $351.6 million were comprised of $308.5 million for dairy & livestock loans and $43.1 million for agribusiness loans, compared to $412.9 million were comprised of $374.9 million for dairy & livestock loans and $38.0 million of agribusiness loans at December 31, 2023.

At March 31, 2024 and December 31, 2023, loans totaling $4.24 billion and $4.04 billion, respectively, were pledged to secure the borrowings and available lines of credit from the FHLB and the Federal Reserve Bank.

There were no outstanding loans held-for-sale as of March 31, 2024 and December 31, 2023.

Credit Quality Indicators

We monitor credit quality by evaluating various risk attributes and utilize such information in our evaluation of the appropriateness of the allowance for credit losses. Internal credit risk ratings, within our loan risk rating system, are the credit quality indicators that we most closely monitor.

An important element of our approach to credit risk management is our loan risk rating system. The originating officer assigns each loan an initial risk rating, which is reviewed and confirmed or changed, as appropriate, by credit management. Approvals are made based upon the amount of inherent credit risk specific to the transaction and are reviewed for appropriateness by senior line and credit management personnel. Credits are monitored by line and credit management personnel for deterioration or improvement in a borrower’s financial condition, which would impact the ability of the borrower to perform under the contract. Risk ratings are adjusted as necessary.

Loans are risk rated into the following categories: Pass, Special Mention, Substandard, Doubtful and Loss. Each of these groups is assessed for the proper amount to be used in determining the adequacy of our allowance for losses. These categories can be described as follows:

Pass — These loans, including loans on the Bank’s internal watch list, range from minimal credit risk to lower than average, but still acceptable, credit risk. Watch list loans usually require more than normal management attention. Loans on the watch list may involve borrowers with adverse financial trends, higher debt/equity ratios, or weaker liquidity positions, but not to the degree of being considered a defined weakness or problem loan where risk of loss may be apparent.

Special Mention — Loans assigned to this category have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in the deterioration of the repayment prospects for the asset or the Company’s credit position at some future date. Special mention assets are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification.

Substandard — Loans classified as substandard are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. Substandard loans are characterized by the distinct possibility that the Company will sustain some loss if deficiencies are not corrected.

Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or the liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable.

Loss — Loans classified as loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off this asset with insignificant value even though partial recovery may be affected in the future.

The following table summarizes loans by type and origination year, according to our internal risk ratings as of the dates presented.


	Origination Year												Revolving loans amortized		Revolving loans converted to
March 31, 2024	2024		2023		2022		2021		2020		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Commercial real estate loans:
Risk Rating:
Pass	$	54,653	$	441,596	$	1,299,240	$	1,120,686	$	866,833	$	2,457,881	$	179,725	$	38,940	$	6,459,554
Special Mention		678		4,556		3,867		18,616		19,117		121,713		2,366		—		170,913
Substandard		—		669		8,105		2,891		32,952		44,705		749		—		90,071
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial real estate loans:	$	55,331	$	446,821	$	1,311,212	$	1,142,193	$	918,902	$	2,624,299	$	182,840	$	38,940	$	6,720,538
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	2,258	$	—	$	—	$	2,258

Construction loans:
Risk Rating:
Pass	$	3	$	2,513	$	12,277	$	22,289	$	8,066	$	—	$	11,549	$	—	$	56,697
Special Mention		—		—		—		—		—		—		—		—		-
Substandard		—		—		—		2,109		—		—		—		—		2,109
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Construction loans:	$	3	$	2,513	$	12,277	$	24,398	$	8,066	$	—	$	11,549	$	—	$	58,806
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SBA loans:
Risk Rating:
Pass	$	10,759	$	19,621	$	47,896	$	50,594	$	24,417	$	102,067	$	—	$	—	$	255,354
Special Mention		—		—		1,616		—		4,767		3,010		—		—		9,393
Substandard		—		—		—		—		—		3,573		—		—		3,573
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA loans:	$	10,759	$	19,621	$	49,512	$	50,594	$	29,184	$	108,650	$	—	$	—	$	268,320
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	90	$	—	$	—	$	90

SBA - PPP loans:
Risk Rating:
Pass	$	—	$	—	$	—	$	591	$	1,658	$	—	$	—	$	—	$	2,249
Special Mention		—		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA - PPP loans:	$	—	$	—	$	—	$	591	$	1,658	$	—	$	—	$	—	$	2,249
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial and industrial loans:
Risk Rating:
Pass	$	28,523	$	135,426	$	136,353	$	90,310	$	82,495	$	151,348	$	296,236	$	4,688	$	925,379
Special Mention		—		9,498		1,124		1,595		828		7,989		8,133		5,279		34,446
Substandard		—		—		239		—		—		45		2,637		374		3,295
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial and industrial loans:	$	28,523	$	144,924	$	137,716	$	91,905	$	83,323	$	159,382	$	307,006	$	10,341	$	963,120
Current YTD Period: Gross charge-offs	$	—	$	—	$	300	$	—	$	—	$	1,186	$	—	$	431	$	1,917


	Origination Year												Revolving loans amortized		Revolving loans converted to
March 31, 2024	2024		2023		2022		2021		2020		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Dairy & livestock and agribusiness loans:
Risk Rating:
Pass	$	—	$	—	$	—	$	685	$	917	$	262	$	266,157	$	270	$	268,291
Special Mention		—		432		—		1,335		—		—		79,044		—		80,811
Substandard		—		—		—		—		—		60		2,380		82		2,522
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Dairy & livestock and agribusiness loans:	$	—	$	432	$	—	$	2,020	$	917	$	322	$	347,581	$	352	$	351,624
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Municipal lease finance receivables loans:
Risk Rating:
Pass	$	193	$	—	$	5,719	$	25,803	$	5,733	$	34,402	$	—	$	—	$	71,850
Special Mention		—		—		—		—		—		182		—		—		182
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Municipal lease finance receivables loans:	$	193	$	—	$	5,719	$	25,803	$	5,733	$	34,584	$	—	$	—	$	72,032
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SFR mortgage loans:
Risk Rating:
Pass	$	11,528	$	21,229	$	60,524	$	43,305	$	43,832	$	93,044	$	—	$	—	$	273,462
Special Mention		—		750		—		—		913		438		—		—		2,101
Substandard		—		—		—		—		—		604		—		308		912
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SFR mortgage loans:	$	11,528	$	21,979	$	60,524	$	43,305	$	44,745	$	94,086	$	—	$	308	$	276,475
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer and other loans:
Risk Rating:
Pass	$	1,636	$	4,037	$	3,483	$	2,492	$	572	$	1,035	$	42,049	$	1,256	$	56,560
Special Mention		—		—		—		214		—		—		4		173		391
Substandard		—		—		—		—		—		—		—		598		598
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Consumer and other loans:	$	1,636	$	4,037	$	3,483	$	2,706	$	572	$	1,035	$	42,053	$	2,027	$	57,549
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	1	$	1	$	2

Total Loans, at amortized cost:
Risk Rating:
Pass	$	107,295	$	624,422	$	1,565,492	$	1,356,755	$	1,034,523	$	2,840,039	$	795,716	$	45,154	$	8,369,396
Special Mention		678		15,236		6,607		21,760		25,625		133,332		89,547		5,452		298,237
Substandard		—		669		8,344		5,000		32,952		48,987		5,766		1,362		103,080
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Loans at amortized cost:	$	107,973	$	640,327	$	1,580,443	$	1,383,515	$	1,093,100	$	3,022,358	$	891,029	$	51,968	$	8,770,713
Current YTD Period: Total gross charge-offs	$	—	$	—	$	300	$	—	$	—	$	3,534	$	1	$	432	$	4,267


	Origination Year												Revolving loans amortized		Revolving loans converted to
December 31, 2023	2023		2022		2021		2020		2019		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Commercial real estate loans:
Risk Rating:
Pass	$	447,991	$	1,315,563	$	1,133,331	$	885,590	$	497,541	$	2,041,329	$	171,223	$	38,568	$	6,531,136
Special Mention		3,241		3,897		15,868		19,368		43,824		74,673		2,911		—		163,782
Substandard		744		8,127		2,891		33,401		12,986		30,637		801		—		89,587
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial real estate loans:	$	451,976	$	1,327,587	$	1,152,090	$	938,359	$	554,351	$	2,146,639	$	174,935	$	38,568	$	6,784,505
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Construction loans:
Risk Rating:
Pass	$	1,274	$	15,046	$	22,288	$	8,058	$	—	$	—	$	17,938	$	—	$	64,604
Special Mention		—		—		2,130		—		—		—		—		—		2,130
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Construction loans:	$	1,274	$	15,046	$	24,418	$	8,058	$	—	$	—	$	17,938	$	—	$	66,734
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SBA loans:
Risk Rating:
Pass	$	20,701	$	48,212	$	51,038	$	29,306	$	6,236	$	101,856	$	—	$	—	$	257,349
Special Mention		—		1,627		—		4,784		1,132		1,760		—		—		9,303
Substandard		—		—		—		—		749		3,218		—		—		3,967
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA loans:	$	20,701	$	49,839	$	51,038	$	34,090	$	8,117	$	106,834	$	—	$	—	$	270,619
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	288	$	—	$	—	$	288

SBA - PPP loans:
Risk Rating:
Pass	$	—	$	—	$	699	$	2,037	$	—	$	—	$	—	$	—	$	2,736
Special Mention		—		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SBA - PPP loans:	$	—	$	—	$	699	$	2,037	$	—	$	—	$	—	$	—	$	2,736
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial and industrial loans:
Risk Rating:
Pass	$	141,080	$	143,847	$	100,059	$	88,743	$	68,352	$	94,027	$	289,539	$	5,460	$	931,107
Special Mention		7,829		738		745		552		4,114		3,986		10,529		5,347		33,840
Substandard		—		257		—		—		89		1,296		2,487		819		4,948
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Commercial and industrial loans:	$	148,909	$	144,842	$	100,804	$	89,295	$	72,555	$	99,309	$	302,555	$	11,626	$	969,895
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	109	$	109


	Origination Year												Revolving loans amortized		Revolving loans converted to
December 31, 2023	2023		2022		2021		2020		2019		Prior		cost basis		term loans		Total
	(Dollars in thousands)
Dairy & livestock and agribusiness loans:
Risk Rating:
Pass	$	296	$	—	$	1,586	$	931	$	80	$	208	$	337,525	$	—	$	340,626
Special Mention		448		—		—		—		25		—		69,232		—		69,705
Substandard		—		—		—		—		—		60		2,500		—		2,560
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Dairy & livestock and agribusiness loans:	$	744	$	—	$	1,586	$	931	$	105	$	268	$	409,257	$	—	$	412,891
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Municipal lease finance receivables loans:
Risk Rating:
Pass	$	—	$	5,735	$	25,803	$	5,981	$	4,267	$	31,622	$	—	$	—	$	73,408
Special Mention		—		—		—		—		—		182		—		—		182
Substandard		—		—		—		—		—		—		—		—		—
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Municipal lease finance receivables loans:	$	—	$	5,735	$	25,803	$	5,981	$	4,267	$	31,804	$	—	$	—	$	73,590
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

SFR mortgage loans:
Risk Rating:
Pass	$	22,248	$	61,070	$	43,573	$	44,076	$	28,049	$	67,750	$	—	$	—	$	266,766
Special Mention		789		—		—		918		544		327		—		—		2,578
Substandard		—		—		—		—		—		200		—		324		524
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total SFR mortgage loans:	$	23,037	$	61,070	$	43,573	$	44,994	$	28,593	$	68,277	$	—	$	324	$	269,868
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer and other loans:
Risk Rating:
Pass	$	4,911	$	4,122	$	2,707	$	702	$	644	$	486	$	38,595	$	871	$	53,038
Special Mention		—		—		246		—		—		—		4		173		423
Substandard		—		—		—		—		—		12		1		598		611
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Consumer and other loans:	$	4,911	$	4,122	$	2,953	$	702	$	644	$	498	$	38,600	$	1,642	$	54,072
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	4	$	—	$	4	$	8

Total Loans, at amortized cost:
Risk Rating:
Pass	$	638,501	$	1,593,595	$	1,381,084	$	1,065,424	$	605,169	$	2,337,278	$	854,820	$	44,899	$	8,520,770
Special Mention		12,307		6,262		18,989		25,622		49,639		80,928		82,676		5,520		281,943
Substandard		744		8,384		2,891		33,401		13,824		35,423		5,789		1,741		102,197
Doubtful & Loss		—		—		—		—		—		—		—		—		—
Total Loans at amortized cost:	$	651,552	$	1,608,241	$	1,402,964	$	1,124,447	$	668,632	$	2,453,629	$	943,285	$	52,160	$	8,904,910
Current YTD Period: Gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	292	$	—	$	113	$	405

Allowance for Credit Losses ("ACL")

The Company's allowance models calculate reserves over the average life of the loan, which includes the remaining time to maturity, adjusted for estimated prepayments applied as an adjustment to our commercial real estate and commercial and industrial loans. Our allowance for credit losses is based upon lifetime loss rate models developed from an estimation framework that uses historical lifetime loss experiences to derive loss rates at a collective pool level. We measure the expected credit losses on a collective (pooled) basis for those loans that share similar risk characteristics. We have three collective loan pools: Commercial Real Estate, Commercial and Industrial, and Consumer. A substantial portion of the ACL relates to loans within the Commercial Real Estate and Commercial and Industrial methodologies, each evaluated on a collective basis. Our ACL amounts are largely driven by portfolio characteristics, including loss history, internal risk grading, various risk attributes, and the economic outlook for certain macroeconomic variables. Risk attributes for commercial real

estate loans include Original Loan to Value ratios ("OLTV"), origination year, loan seasoning, and macroeconomic variables that include Real GDP growth, commercial real estate price index and unemployment rate. Risk attributes for commercial and industrial loans include internal risk ratings, borrower industry sector, loan credit spreads and macroeconomic variables that include unemployment rate and BBB spread. The macroeconomic variables for Consumer include unemployment rate and GDP. The Commercial Real Estate methodology is applied over commercial real estate loans, a portion of construction loans, and a portion of SBA loans. The Commercial and Industrial methodology is applied over a substantial portion of the Company’s commercial and industrial loans, all dairy & livestock and agribusiness loans, municipal lease receivables, as well as the remaining portion of SBA loans (excluding Paycheck Protection Program loans). The Consumer methodology is applied to SFR mortgage loans, consumer loans, as well as the remaining construction loans. In addition to determining the quantitative life of loan loss rate to be applied against the amortized cost basis of the portfolio segments, management reviews current conditions and forecasts to determine whether adjustments are needed to ensure that the life of loan loss rates reflect both the current state of the portfolio, and expectations for macroeconomic changes. The Company’s ACL estimate incorporates a reasonable and supportable forecast of various macroeconomic variables over the remaining average life of our loans. This forecast incorporates an assumption that each macroeconomic variable will revert to a long-term expectation, starting in years two through three, of the reasonable and supportable forecast period, with the reversion largely completed within the first five years of the forecast. The economic forecast is based on probability weighted scenarios to address macroeconomic uncertainty. Our methodology for assessing the appropriateness of the allowance is reviewed on a regular basis and considers overall risks in the Bank’s loan portfolio. Refer to Note 3 – Summary of Significant Accounting Policies included in our Annual Report on Form 10-K for the year ended December 31, 2023 for a more detailed discussion concerning the allowance for credit losses.

The ACL totaled $82.8 million at March 31, 2024, compared to $86.8 million at December 31, 2023. The $4.0 million decrease in the ACL from December 31, 2023 to March 31, 2024 is comprised of $4.0 in net charge-offs. At March 31, 2024, the ACL as a percentage of total loans and leases, at amortized cost, was 0.94%. This compares to 0.97% at December 31, 2023. Our economic forecast continues to be a blend of multiple forecasts produced by Moody’s. These U.S. economic forecasts include a baseline forecast, as well as downside forecasts. The baseline forecast continues to represent the largest weighting in our multi-weighted forecast scenario, with downside risks weighted among multiple forecasts. As of March 31, 2024, the resulting weighted forecast resulted in Real GDP growth declining in the third and fourth quarters of 2024. Real GDP growth is forecasted to be below 2% for 2025, before returning to growth between 2% and 2.5% in 2026. Commercial real estate values are forecasted to continue their decline until reaching their lowest level in the third quarter 2024. Unemployment is forecasted to rise in 2024, peaking around 6% in the first quarter of 2025. The unemployment rate is forecasted to stay elevated through 2026.

Management believes that the ACL was appropriate at March 31, 2024 and December 31, 2023. Due to inflationary pressures, high interest rates, lower commercial real estate values, and geopolitical events, no assurance can be given that economic conditions that adversely affect the Company’s service areas or other circumstances will not be reflected in increased provisions for credit losses in the future.

The following tables present the balance and activity related to the allowance for credit losses for held-for-investment loans by type for the periods presented.


	Three Months Ended March 31, 2024
	Ending Balance December 31, 2023		Charge-offs			Recoveries		Provision for (Recapture of) Credit Losses			Ending Balance March 31, 2024
	(Dollars in thousands)
Commercial real estate	$	69,466	$	(2,258	)	$	—	$	2,237		$	69,445
Construction		1,277		—			3		16			1,296
SBA		2,679		(90	)		63		(121	)		2,531
Commercial and industrial		9,116		(1,917	)		176		(2,316	)		5,059
Dairy & livestock and agribusiness		3,098		—			—		154			3,252
Municipal lease finance receivables		210		—			—		(16	)		194
SFR mortgage		535		—			—		(52	)		483
Consumer and other loans		461		(2	)		—		98			557
Total allowance for credit losses	$	86,842	$	(4,267	)	$	242	$	—		$	82,817


	Three Months Ended March 31, 2023
	Ending Balance December 31, 2022		Charge-offs			Recoveries		Provision for (Recapture of) Credit Losses			Ending Balance March 31, 2023
	(Dollars in thousands)
Commercial real estate	$	64,806	$	—		$	—	$	2,311		$	67,117
Construction		1,702		—			3		(31	)		1,674
SBA		2,809		(94	)		12		2			2,729
Commercial and industrial		10,206		(16	)		14		(1,241	)		8,963
Dairy & livestock and agribusiness		4,400		—			4		366			4,770
Municipal lease finance receivables		296		—			—		(13	)		283
SFR mortgage		366		—			—		43			409
Consumer and other loans		532		—			—		63			595
Total allowance for credit losses	$	85,117	$	(110	)	$	33	$	1,500		$	86,540

Past Due and Nonperforming Loans

We seek to manage asset quality and control credit risk through diversification of the loan portfolio and the application of policies designed to promote sound underwriting and loan monitoring practices. The Bank’s Credit Management Division is responsible for monitoring asset quality, establishing credit policies and procedures and enforcing the consistent application of these policies and procedures across the Bank. Reviews of nonperforming, past due loans and larger credits, designed to identify potential charges to the allowance for credit losses, are conducted on an ongoing basis. These reviews consider such factors as the financial strength of borrowers and any guarantors, the value of the applicable collateral, loan loss experience, estimated credit losses, growth in the loan portfolio, prevailing economic conditions and other factors. Refer to Note 3 – Summary of Significant Accounting Policies, included in our Annual Report on Form 10-K for the year ended December 31, 2023, for additional discussion concerning the Bank’s policy for past due and nonperforming loans.

The following table presents the recorded investment in, and the aging of, past due loans (including nonaccrual loans), by type of loans as of the dates presented.


	March 31, 2024
	30-59 Days Past Due		60-89 Days Past Due		Greater than 89 Days Past Due		Total Past Due		Loans Not Past Due		Total Loans and Financing Receivables
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	2,526	$	—	$	—	$	2,526	$	2,407,593	$	2,410,119
Non-owner occupied		11,295		5,960		10,661		27,916		4,282,503		4,310,419
Construction
Speculative (1)		—		—		—		—		52,256		52,256
Non-speculative		—		—		—		—		6,550		6,550
SBA		408		—		54		462		267,858		268,320
SBA - PPP		—		—		—		—		2,249		2,249
Commercial and industrial		6		—		2,487		2,493		960,627		963,120
Dairy & livestock and agribusiness		—		—		—		—		351,624		351,624
Municipal lease finance receivables		—		—		—		—		72,032		72,032
SFR mortgage		—		—		—		—		276,475		276,475
Consumer and other loans		—		—		—		—		57,549		57,549
Total loans at amortized cost	$	14,235	$	5,960	$	13,202	$	33,397	$	8,737,316	$	8,770,713

(1)

Speculative construction loans are generally for properties where there is no identified buyer or renter.


	December 31, 2023
	30-59 Days Past Due		60-89 Days Past Due		Greater than 89 Days Past Due		Total Past Due		Loans Not Past Due		Total Loans and Financing Receivables
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	300	$	—	$	2,505	$	2,805	$	2,430,447	$	2,433,252
Non-owner occupied		16		—		531		547		4,350,706		4,351,253
Construction
Speculative (1)		—		—		—		—		57,921		57,921
Non-speculative		—		—		—		—		8,813		8,813
SBA		—		108		969		1,077		269,542		270,619
SBA - PPP		—		—		—		—		2,736		2,736
Commercial and industrial		12		—		4,253		4,265		965,630		969,895
Dairy & livestock and agribusiness		—		—		—		—		412,891		412,891
Municipal lease finance receivables		—		—		—		—		73,590		73,590
SFR mortgage		201		—		—		201		269,667		269,868
Consumer and other loans		18		—		—		18		54,054		54,072
Total loans at amortized cost	$	547	$	108	$	8,258	$	8,913	$	8,895,997	$	8,904,910

(1)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

Amortized cost of our finance receivables and loans that are on nonaccrual status, including loans with no allowance are presented as of March 31, 2024 and December 31, 2023 by type of loan.


	March 31, 2024
	Nonaccrual with No Allowance for Credit Losses		Total Nonaccrual (1) (3)		Loans Past Due Over 89 Days Still Accruing
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	—	$	—	$	—
Non-owner occupied		10,661		10,661		—
Construction
Speculative (2)		—		—		—
Non-speculative		—		—		—
SBA		54		54		—
SBA - PPP		—		—		—
Commercial and industrial		2,727		2,727		—
Dairy & livestock and agribusiness		60		60		—
Municipal lease finance receivables		—		—		—
SFR mortgage		308		308		—
Consumer and other loans		-		-		—
Total loans at amortized cost	$	13,810	$	13,810	$	—

(1)

As of March 31, 2024, $608,000 of nonaccruing loans were current and $13.2 million were 90+ days past due.

(2)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

(3)

There were no guaranteed portion of nonaccrual SBA loans that are in process of collection.


	December 31, 2023
	Nonaccrual with No Allowance for Credit Losses		Total Nonaccrual (1)		Loans Past Due Over 89 Days Still Accruing
	(Dollars in thousands)
Commercial real estate
Owner occupied	$	2,505	$	2,505	$	—
Non-owner occupied		548		12,935		—
Construction
Speculative (2)		—		—		—
Non-speculative		—		—		—
SBA		787		969		—
SBA - PPP		—		—		—
Commercial and industrial		908		4,509		—
Dairy & livestock and agribusiness		60		60		—
Municipal lease finance receivables		—		—		—
SFR mortgage		323		324		—
Consumer and other loans		—		—		—
Total loans at amortized cost	$	5,131	$	21,302	$	—

(1)

As of December 31, 2023, $13.0 million of nonaccruing loans were current, $16,000 were 30-59 days past due, and $8.3 million were 90+ days past due.

(2)

Speculative construction loans are generally for properties where there is no identified buyer or renter.

Collateral Dependent Loans

A loan is considered collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. The following table presents the recorded investment in collateral-dependent loans by type of loans as of the date presented.


	March 31, 2024						Number of Loans
	Real Estate		Business Assets		Other		Dependent on Collateral
	(Dollars in thousands)
Commercial real estate	$	10,661	$	—	$	—		2
Construction		—		—		—		—
SBA		54		—		—		1
SBA - PPP		—		—		—		—
Commercial and industrial		—		2,727		—		2
Dairy & livestock and agribusiness		60		—		—		1
Municipal lease finance receivables		—		—		—		—
SFR mortgage		308		—		—		1
Consumer and other loans		—		—		—		—
Total collateral-dependent loans	$	11,083	$	2,727	$	—		7


	December 31, 2023						Number of Loans
	Real Estate		Business Assets		Other		Dependent on Collateral
	(Dollars in thousands)
Commercial real estate	$	15,440	$	—	$	—		5
Construction		—		—		—		—
SBA		749		220		—		4
SBA - PPP		—		—		—		—
Commercial and industrial		392		2,950		1,167		8
Dairy & livestock and agribusiness		60		—		—		1
Municipal lease finance receivables		—		—		—		—
SFR mortgage		324		—		—		1
Consumer and other loans		—		—		—		—
Total collateral-dependent loans	$	16,965	$	3,170	$	1,167		19

Reserve for Unfunded Loan Commitments

The allowance for off-balance sheet credit exposure relates to commitments to extend credit, letters of credit and undisbursed funds on lines of credit. The Company evaluates credit risk associated with the off-balance sheet loan commitments in the same manner as it evaluates credit risk associated with the loan and lease portfolio. The Bank's ACL methodology produced an allowance of $7.5 million for the off-balance sheet credit exposures as of March 31, 2024. There was no provision for unfunded loan commitments for the three months ended March 31, 2024, compared to $500,000 in provision for the three months ended March 31, 2023. As of March 31, 2024 and December 31, 2023, the balance in this reserve was $7.5 million and was included in other liabilities.

Modifications of Loans to Borrowers Experiencing Financial Difficulty

The Company adopted Accounting Standards Update (“ASU”) 2022-02, Financial Instruments - Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures (“ASU 2022-02”) effective January 1, 2023. The amendments in ASU 2022-02 eliminated the recognition and measurement of TDRs and enhanced disclosures for loan modifications to borrowers experiencing financial difficulty.

There were three loans to borrowers experiencing financial difficulty that were modified during the three months ended March 31, 2024 with an amortized cost totaling $1.3 million as of March 31, 2024, including one dairy & livestock and agribusiness loan of $962,000 and two commercial and industrial loans totaling $350,000.


	Term Extension					Combination-Term Extension and Interest Rate Reduction
	Amortized Cost Basis		% of Total Class of Financing Receivables			Amortized Cost Basis		% of Total Class of Financing Receivables			Total
March 31, 2024
Commercial real estate loans	$	2,466		0.03	%	$	686		0.01	%	$	3,152
Commercial and industrial		1,644		0.02	%		242		0.00	%		1,886
Dairy & livestock and agribusiness		5,727		0.07	%		—		0.00	%		5,727
Total	$	9,837				$	928				$	10,765

March 31, 2023
Commercial real estate loans	$	1,587		0.02	%	$	—		—		$	1,587
Commercial and industrial		2,250		0.03	%		—		—			2,250
Dairy & livestock and agribusiness		1,999		0.02	%		—		—			1,999
Total	$	5,836				$	—				$	5,836



Loan Type		Financial Effect

		Term Extension
March 31, 2024
Commercial real estate loans		Added a weighted-average 1.3 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and industrial		Added a weighted-average 0.7 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Dairy & livestock and agribusiness		Added a weighted-average 0.6 years to the life of loans, which reduced monthly payment amounts for the borrowers.

		Term Extension
March 31, 2023
Commercial real estate loans		Added a weighted-average 1.1 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and industrial		Added a weighted-average 0.8 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Dairy & livestock and agribusiness		Added a weighted-average 1.2 years to the life of loans, which reduced monthly payment amounts for the borrowers.

As of March 31, 2024, the Company did not have any loans made to borrowers experiencing financial difficulty that were modified during the first quarter of 2024 that subsequently defaulted. Payment default is defined as movement to nonaccrual (nonperforming) status, foreclosure or charge-off, whichever occurs first.


	Payment Status (amortized cost basis)
	Current		30-89 Days Past Due		90+ Days Past Due
	(Dollars in thousands)
Commercial real estate loans	$	3,152	$	—	$	—
Commercial and industrial		1,886		—		—
Dairy & livestock and agribusiness		5,727		—		—
Total	$	10,765	$	—	$	—

Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Recorded Investment in Collateral-Dependent loans (Detail) $ in Thousands	Mar. 31, 2024 USD ($) Collateral	Dec. 31, 2023 USD ($) Collateral
Financing Receivable, Modifications [Line Items]
Real Estate	$ 11,083	$ 16,965
Business Assets	2,727	3,170
Other	$ 0	$ 1,167
Number of Loans Dependent on Collateral \| Collateral	7	19
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 10,661	$ 15,440
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	2	5
Construction [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 0	$ 0
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	0	0
Small Business Administration [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 54	$ 749
Business Assets	0	220
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	1	4
SBA - Paycheck Protection Program (PPP) [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 0	$ 0
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	0	0
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 0	$ 392
Business Assets	2,727	2,950
Other	$ 0	$ 1,167
Number of Loans Dependent on Collateral \| Collateral	2	8
Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 60	$ 60
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	1	1
Municipal Lease Finance Receivables [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 0	$ 0
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	0	0
SFR Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 308	$ 324
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	1	1
Consumer and Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 0	$ 0
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral \| Collateral	0	0

Derivative Financial Instruments - Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023
Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset Notional	$ 300,000		$ 1,000,000
Other Assets [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	38	$ 112
Other Assets [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	38	112
Derivative Asset Notional	390,307	394,359
Derivative Liability Notional	390,307	394,359
Other Assets [Member] \| Derivatives designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	11,682	0
Other Assets [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	10,893	0
Derivative Asset Notional	1,000,000	1,000,000
Other Assets [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	789
Other Liabilities [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	38	112
Other Liabilities [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	38	112
Other Liabilities [Member] \| Derivatives designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	6,938
Other Liabilities [Member] \| Fair Value Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	0
Other Liabilities [Member] \| Cash Flow Hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability Notional	300,000
Liability Derivatives	$ 0	$ 6,938

Loans and Lease Finance Receivables and Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral		$ 4,240,000				$ 4,040,000
Financing Receivable, Modified, Accumulated		10,765				5,836
Loans held-for-sale		0				0
Allowance for Credit Losses		82,800				86,800
Reserve for credit risk for undisbursed commitments		7,500				7,500
Increase in reserve for unfunded loan commitments		500,000	$ 500,000
Allowance For Credit Losses Increase Decrease						$ 4,000
Allowance For Credit Losses Write Offs		$ 7,500
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total gross loan portfolio (excluding PCI loans)		0.94%				0.97%
GDP [Member] \| Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Increase Decrease In Macro Economic Factors					2.00%
GDP [Member] \| Forecast [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Increase Decrease In Macro Economic Factors				2.50%
Unemployment [Member] \| Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Increase Decrease In Macro Economic Factors	6.00%
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total gross loan portfolio (excluding PCI loans)		80.44%
Notes receivable gross		$ 6,720,538				$ 6,784,505
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total gross loan portfolio (excluding PCI loans)		76.62%
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modified, Accumulated		$ 350,000
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modified, Accumulated		3,152				1,587
Loans Secured by Dairy & Livestock Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modified, Accumulated		962,000
Modifications of Loans To Borrowers Experiencing Financial Difficulty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modified, Accumulated		1,300
Loans, Excluding PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross		351,600				412,900
Loans, Excluding PCI Loans [Member] \| Dairy & Livestock Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross		308,500				374,900
Loans, Excluding PCI Loans [Member] \| Agribusiness Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross		$ 43,100				$ 38,000
Loans, Excluding PCI Loans [Member] \| Loans Secured by Farmland [Member] \| Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total gross loan portfolio (excluding PCI loans)		7.41%				7.34%
Notes receivable gross		$ 498,200				$ 497,700
Loans, Excluding PCI Loans [Member] \| Loans Secured by Farmland [Member] \| Dairy & Livestock Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross		121,400
Loans, Excluding PCI Loans [Member] \| Loans Secured by Farmland [Member] \| Agribusiness Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross		$ 376,800
Loans, Excluding PCI Loans [Member] \| Loans Secured by Farmland [Member] \| Loans Secured by Dairy & Livestock Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross						122,400
Loans, Excluding PCI Loans [Member] \| Loans Secured by Farmland [Member] \| Loans Secured by Agricultural Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross						$ 375,300

Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Amortized Cost of Loans Activity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 10,765	$ 5,836
Combination-Term Extension and Interest Rate Reduction [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	928	0
Term Extension [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	9,837	5,836
Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	3,152	1,587
Commercial Real Estate [Member] \| Combination-Term Extension and Interest Rate Reduction [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 686	$ 0
Financing receivable, modified in period, to total financing receivables, percentage	0.01%	0.00%
Commercial Real Estate [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 2,466	$ 1,587
Financing receivable, modified in period, to total financing receivables, percentage	0.03%	0.02%
Commercial and Industrial Sector [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 1,886	$ 2,250
Commercial and Industrial Sector [Member] \| Combination-Term Extension and Interest Rate Reduction [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 242	$ 0
Financing receivable, modified in period, to total financing receivables, percentage	0.00%	0.00%
Commercial and Industrial Sector [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 1,644	$ 2,250
Financing receivable, modified in period, to total financing receivables, percentage	0.02%	0.03%
Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 5,727	$ 1,999
Dairy & Livestock and Agribusiness [Member] \| Combination-Term Extension and Interest Rate Reduction [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 0	$ 0
Financing receivable, modified in period, to total financing receivables, percentage	0.00%	0.00%
Dairy & Livestock and Agribusiness [Member] \| Term Extension [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis of financing receivable	$ 5,727	$ 1,999
Financing receivable, modified in period, to total financing receivables, percentage	0.07%	0.02%

Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Components of lease costs and supplemental information related to leases

The tables below present the components of lease costs and supplemental information related to leases as of and for the periods presented.


	March 31, 2024		December 31, 2023
	(Dollars in thousands)
Lease Assets and Liabilities
ROU assets	$	20,666	$	21,655
Total lease liabilities		23,037		24,056


	Three Months Ended March 31,
	2024		2023
	(Dollars in thousands)
Lease Cost
Operating lease expense (1)	$	1,845	$	1,841
Sublease income		—		—
Total lease expense	$	1,845	$	1,841

(1)

Includes short-term leases and variable lease costs, which are immaterial.


Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases, net	$	1,864	$	1,756


	March 31, 2024			December 31, 2023
Lease Term and Discount Rate
Weighted average remaining lease term (years)		3.84			3.94
Weighted average discount rate		3.58	%		3.48	%

Future lease payments required for leases that have initial or remaining non-cancelable lease terms

The future lease payments required for leases that have initial or remaining non-cancelable lease terms in excess of one year as of March 31, 2024, excluding property taxes and insurance, are as follows:


	March 31, 2024
	(Dollars in thousands)
Year:
2024 (excluding the three months ended March 31, 2024)	$	5,490
2025		6,759
2026		5,524
2027		4,040
2028		2,169
Thereafter		825
Total future lease payments		24,807
Less: Imputed interest		(1,770	)
Present value of lease liabilities	$	23,037

Earnings Per Share Reconciliation (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Common Share Reconciliation

The table below shows earnings per common share and diluted earnings per common share, and reconciles the numerator and denominator of both earnings per common share calculations.


	Three Months Ended March 31,
	2024		2023
	(In thousands, except per share amounts)
Earnings per common share:
Net earnings	$	48,599	$	59,270
Less: Net earnings allocated to restricted stock		324		407
Net earnings allocated to common shareholders	$	48,275	$	58,863
Weighted average shares outstanding		138,429		138,592
Basic earnings per common share	$	0.35	$	0.42

Diluted earnings per common share:
Net income allocated to common shareholders	$	48,275	$	58,863
Weighted average shares outstanding		138,429		138,592
Incremental shares from assumed exercise of outstanding options		174		361
Diluted weighted average shares outstanding		138,603		138,953
Diluted earnings per common share	$	0.35	$	0.42

Summary of Significant Accounting policies (Policies)	3 Months Ended
Summary of Significant Accounting policies (Policies)	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements — The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. A material estimate that is particularly susceptible to significant change in the near term relates to the determination of the allowance for credit losses. Other significant estimates, which may be subject to change, include fair value determinations and disclosures, impairment of investments, goodwill, loans, as well as valuation of deferred tax assets.

Revenue Recognition - Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606 (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Noninterest income:
Other	$ 1,875	$ 3,378
Total noninterest income	14,113	13,202
Service Charges on Deposit Accounts [Member]
Noninterest income:
Revenue from contract with customer	5,036	5,344
Trust and Investment Services [Member]
Noninterest income:
Revenue from contract with customer	3,224	2,914
Bankcard Services [Member]
Noninterest income:
Revenue from contract with customer	385	377
Accounting Standards Update 2014-09 [Member]
Noninterest income:
Other	1,875	3,378
Total noninterest income	10,520	12,013
Accounting Standards Update 2014-09 [Member] \| Service Charges on Deposit Accounts [Member]
Noninterest income:
Revenue from contract with customer	5,036	5,344
Accounting Standards Update 2014-09 [Member] \| Trust and Investment Services [Member]
Noninterest income:
Revenue from contract with customer	3,224	2,914
Accounting Standards Update 2014-09 [Member] \| Bankcard Services [Member]
Noninterest income:
Revenue from contract with customer	385	377
Accounting Standards Update 2014-09 Not Adopted [Member]
Noninterest income:
Total noninterest income	$ 3,593	$ 1,189

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 22
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

+ Details

Borrowings

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Borrowings

6. BORROWINGS

Customer Repurchase Agreements

The Bank offers a repurchase agreement product to its customers. This product, known as Citizens Sweep Manager, sells our investment securities overnight to our customers under an agreement to repurchase them the next day at a price which reflects the market value of the use of funds by the Bank for the period concerned. These repurchase agreements are signed with customers who want to invest their excess deposits, above a pre-determined balance in a demand deposit account, in order to earn interest. As of March 31, 2024, total funds borrowed under these agreements were $275.7 million with a weighted average interest rate of 0.41%, compared to $271.6 million with a weighted average interest rate of 0.29% at December 31, 2023.

Federal Home Loan Bank Advances and Other Borrowings

As of March 31, 2024, total borrowings of $2.0 billion, consisted of one-year advances from the Federal Reserve’s Bank Term Funding Program (“BTFP”) at a cost of approximately 4.75%. The BTFP advances include maturities of $695 million in May and $1.3 billion in January of 2025.

As of December 31, 2023, total short-term borrowings of $2.07 billion, consisted of $1.91 billion of one-year advances from the Federal Reserve’s BTFP at a cost of 4.78% and $160 million of short-term FHLB advances, at an average cost of approximately 5.7%. The BTFP advances included maturities of $695 million in May and $1.2 billion in December of 2024.

At March 31, 2024, loans with a carrying value of $4.24 billion were pledged to secure available lines of credit from the FHLB and the Federal Reserve Bank.

At March 31, 2024 investment securities with carrying values of $2.51 billion were pledged to secure various types of deposits, including $1.37 billion of public funds. In addition, investment securities with carrying values of $2.75 billion were pledged to secure $372.3 million for repurchase agreements, $1.88 billion for outstanding borrowings, $446 million for unused borrowing capacity and approximately $51 million for other purposes as required or permitted by law.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Recorded Investment in, and Aging of, Past Due and Nonaccrual Loans, Including PCI Loans by Class of Loans (Detail) - USD ($)
$ in Thousands

Mar. 31, 2024

Dec. 31, 2023

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

$ 33,397

$ 8,913

Nonaccrual

13,810

^[1],[2]

21,302

^[3]

Nonaccrual with No Allowance for Credit Losses

13,810

5,131

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

8,770,713

8,904,910

Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

8,737,316

8,895,997

30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

14,235

547

Nonaccrual

16,000

60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

5,960

108

Nonaccrual

13,200

Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

13,202

8,258

Nonaccrual

8,300

Commercial Real Estate Owner Occupied [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

2,526

2,805

Nonaccrual

^[1],[2]

2,505

^[3]

Nonaccrual with No Allowance for Credit Losses

2,505

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

2,410,119

2,433,252

Commercial Real Estate Owner Occupied [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

2,407,593

2,430,447

Commercial Real Estate Owner Occupied [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

2,526

300

Commercial Real Estate Owner Occupied [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Commercial Real Estate Owner Occupied [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

2,505

Commercial Real Estate Non-owner Occupied [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

27,916

547

Nonaccrual

10,661

^[1],[2]

12,935

^[3]

Nonaccrual with No Allowance for Credit Losses

10,661

548

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

4,310,419

4,351,253

Commercial Real Estate Non-owner Occupied [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

4,282,503

4,350,706

Commercial Real Estate Non-owner Occupied [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

11,295

Commercial Real Estate Non-owner Occupied [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

5,960

Commercial Real Estate Non-owner Occupied [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

10,661

531

Construction Speculative [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

^[4]

^[5]

Nonaccrual

^[1],[2],[6]

^[3],[7]

Nonaccrual with No Allowance for Credit Losses

^[6]

^[7]

Loans Past Due Over 89 Days Still Accruing

^[6]

^[7]

Total loans, at amortized cost

52,256

^[4]

57,921

^[5]

Construction Speculative [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

52,256

^[4]

57,921

^[5]

Construction Speculative [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

^[4]

^[5]

Construction Speculative [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

^[4]

^[5]

Construction Speculative [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

^[4]

^[5]

Construction Non-speculative [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Nonaccrual

^[1],[2]

^[3]

Nonaccrual with No Allowance for Credit Losses

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

6,550

8,813

Construction Non-speculative [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

6,550

8,813

Construction Non-speculative [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Construction Non-speculative [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Construction Non-speculative [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Small Business Administration [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

462

1,077

Nonaccrual

^[1],[2]

969

^[3]

Nonaccrual with No Allowance for Credit Losses

787

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

268,320

270,619

Small Business Administration [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

267,858

269,542

Small Business Administration [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

408

Small Business Administration [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

108

Small Business Administration [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

969

SBA - Paycheck Protection Program (PPP) [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Loans Not Past Due

2,249

2,736

Nonaccrual

^[1],[2]

^[3]

Nonaccrual with No Allowance for Credit Losses

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

2,249

2,736

SBA - Paycheck Protection Program (PPP) [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

2,249

2,736

SBA - Paycheck Protection Program (PPP) [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

SBA - Paycheck Protection Program (PPP) [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

SBA - Paycheck Protection Program (PPP) [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Commercial and Industrial [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

2,493

4,265

Nonaccrual

2,727

^[1],[2]

4,509

^[3]

Nonaccrual with No Allowance for Credit Losses

2,727

908

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

963,120

969,895

Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

960,627

965,630

Commercial and Industrial [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Commercial and Industrial [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Commercial and Industrial [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

2,487

4,253

Dairy & Livestock and Agribusiness [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Nonaccrual

^[1],[2]

^[3]

Nonaccrual with No Allowance for Credit Losses

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

351,624

412,891

Dairy & Livestock and Agribusiness [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

351,624

412,891

Dairy & Livestock and Agribusiness [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Dairy & Livestock and Agribusiness [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Dairy & Livestock and Agribusiness [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Municipal Lease Finance Receivables [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Loans Not Past Due

72,032

73,590

Nonaccrual

^[1],[2]

^[3]

Nonaccrual with No Allowance for Credit Losses

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

72,032

73,590

Municipal Lease Finance Receivables [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

72,032

73,590

Municipal Lease Finance Receivables [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Municipal Lease Finance Receivables [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Municipal Lease Finance Receivables [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

SFR Mortgage [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

201

Nonaccrual

308

^[1],[2]

324

^[3]

Nonaccrual with No Allowance for Credit Losses

308

323

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

276,475

269,868

SFR Mortgage [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

276,475

269,667

SFR Mortgage [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

201

SFR Mortgage [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

SFR Mortgage [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Consumer and Other Loans [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Nonaccrual

^[1],[2]

^[3]

Nonaccrual with No Allowance for Credit Losses

Loans Past Due Over 89 Days Still Accruing

Total loans, at amortized cost

57,549

54,072

Consumer and Other Loans [Member] | Financial Asset, Not Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Loans Not Past Due

57,549

54,054

Consumer and Other Loans [Member] | 30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Consumer and Other Loans [Member] | 60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

Consumer and Other Loans [Member] | Greater than 89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Total Past Due

$ 0

[1]	As of March 31, 2024, $608,000 of nonaccruing loans were current and $13.2 million were 90+ days past due.
[2]	There were no guaranteed portion of nonaccrual SBA loans that are in process of collection.
[3]	As of December 31, 2023, $13.0 million of nonaccruing loans were current, $16,000 were 30-59 days past due, and $8.3 million were 90+ days past due.
[4]	Speculative construction loans are generally for properties where there is no identified buyer or renter.
[5]	Speculative construction loans are generally for properties where there is no identified buyer or renter.
[6]	Speculative construction loans are generally for properties where there is no identified buyer or renter.
[7]	Speculative construction loans are generally for properties where there is no identified buyer or renter.

Investment Securities - Summary of Amortized Cost and Estimated Fair Value of Investment Securities (Detail) - USD ($)
$ in Thousands

Mar. 31, 2024

Dec. 31, 2023

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 3,333,603

$ 3,398,942

Gross Unrealized Holding Gain, Available-for-sale

7,050

Gross Unrealized Holding Loss, Available-for-sale

(496,564)

(449,867)

Fair Value, Available-for-sale

$ 2,837,100

$ 2,956,125

Total Percent, Available-for-sale

100.00%

Amortized Cost, Held-to-maturity

$ 2,454,586

$ 2,464,610

Gross Unrealized Holding Gain, Held-to-maturity

2,223

3,438

Gross Unrealized Holding Loss, Held-to-maturity

(412,778)

(385,167)

Fair Value, Held-to-maturity

$ 2,044,031

$ 2,082,881

Total Percent, Held-to-maturity

100.00%

Government Agency/GSE [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 32,644

$ 32,229

Gross Unrealized Holding Gain, Available-for-sale

Gross Unrealized Holding Loss, Available-for-sale

(4)

Fair Value, Available-for-sale

$ 32,640

$ 32,253

Total Percent, Available-for-sale

1.15%

1.09%

Amortized Cost, Held-to-maturity

$ 526,752

$ 530,656

Gross Unrealized Holding Gain, Held-to-maturity

Gross Unrealized Holding Loss, Held-to-maturity

(103,672)

(97,972)

Fair Value, Held-to-maturity

$ 423,080

$ 432,684

Total Percent, Held-to-maturity

21.46%

21.53%

Mortgage-backed Securities [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 2,766,695

$ 2,843,744

Gross Unrealized Holding Gain, Available-for-sale

Gross Unrealized Holding Loss, Available-for-sale

(367,613)

(336,107)

Fair Value, Available-for-sale

$ 2,399,107

$ 2,507,679

Total Percent, Available-for-sale

84.56%

84.83%

Amortized Cost, Held-to-maturity

$ 652,864

$ 663,090

Gross Unrealized Holding Gain, Held-to-maturity

Gross Unrealized Holding Loss, Held-to-maturity

(109,336)

(97,436)

Fair Value, Held-to-maturity

$ 543,528

$ 565,654

Total Percent, Held-to-maturity

26.60%

26.90%

CMO/REMIC [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 495,576

$ 502,234

Gross Unrealized Holding Gain, Available-for-sale

Gross Unrealized Holding Loss, Available-for-sale

(116,682)

(112,872)

Fair Value, Available-for-sale

$ 378,894

$ 389,362

Total Percent, Available-for-sale

13.35%

13.17%

Amortized Cost, Held-to-maturity

$ 798,226

$ 802,892

Gross Unrealized Holding Gain, Held-to-maturity

Gross Unrealized Holding Loss, Held-to-maturity

(162,528)

(156,155)

Fair Value, Held-to-maturity

$ 635,698

$ 646,737

Total Percent, Held-to-maturity

32.52%

32.58%

Municipal Bonds [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 26,480

$ 26,477

Gross Unrealized Holding Gain, Available-for-sale

Gross Unrealized Holding Loss, Available-for-sale

(1,372)

(888)

Fair Value, Available-for-sale

$ 25,144

$ 25,635

Total Percent, Available-for-sale

0.89%

0.87%

Amortized Cost, Held-to-maturity

$ 465,289

$ 467,972

Gross Unrealized Holding Gain, Held-to-maturity

2,223

3,438

Gross Unrealized Holding Loss, Held-to-maturity

(37,242)

(33,604)

Fair Value, Held-to-maturity

$ 430,270

$ 437,806

Total Percent, Held-to-maturity

18.96%

18.99%

Other Securities [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

$ 1,315

$ 1,196

Gross Unrealized Holding Gain, Available-for-sale

Gross Unrealized Holding Loss, Available-for-sale

Fair Value, Available-for-sale

$ 1,315

$ 1,196

Total Percent, Available-for-sale

0.05%

0.04%

Amortized Cost, Held-to-maturity

$ 11,455

Gross Unrealized Holding Gain, Held-to-maturity

Gross Unrealized Holding Loss, Held-to-maturity

Fair Value, Held-to-maturity

$ 11,455

Total Percent, Held-to-maturity

0.46%

Unallocated Portfolio Layer Fair Value [Member]

Schedule of Investments [Line Items]

Amortized Cost, Available-for-sale

^[1]

$ 10,893

$ (6,938)

Gross Unrealized Holding Gain, Available-for-sale

^[1]

6,938

Gross Unrealized Holding Loss, Available-for-sale

^[1]

(10,893)

Fair Value, Available-for-sale

^[1]

$ 0

Total Percent, Available-for-sale

^[1]

0.00%

[1]

Business

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Business

1. BUSINESS

The condensed consolidated financial statements include CVB Financial Corp. (referred to herein on an unconsolidated basis as “CVB” and on a consolidated basis as “we”, “our” or the “Company”) and its wholly owned subsidiary: Citizens Business Bank (the “Bank” or “CBB”), after elimination of all intercompany transactions and balances. The Company has one inactive subsidiary, Chino Valley Bancorp.

The Company’s primary operations are related to traditional banking activities. This includes the acceptance of deposits and the lending and investing of money through the operations of the Bank. The Bank also provides trust and investment-related services to customers through its CitizensTrust Division. The Bank’s customers consist primarily of small to mid-sized businesses and individuals located throughout California. As of March 31, 2024, the Bank operated 62 banking centers and three trust office locations. The Company is headquartered in the city of Ontario, California.

Investment Securities

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Investment Securities

4. INVESTMENT SECURITIES

The amortized cost and estimated fair value of investment securities are summarized below. The majority of securities held are available-for-sale securities with fair value based on quoted prices for similar assets in active markets or quoted prices for identical assets in markets that are not active. Estimated fair values were obtained from an independent pricing service based upon market quotes.


	March 31, 2024
	Amortized Cost		Gross Unrealized Holding Gain		Gross Unrealized Holding Loss			Fair Value		Total Percent
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,644	$	—	$	(4	)	$	32,640		1.15	%
Mortgage-backed securities		2,766,695		25		(367,613	)		2,399,107		84.56	%
CMO/REMIC		495,576		—		(116,682	)		378,894		13.35	%
Municipal bonds		26,480		36		(1,372	)		25,144		0.89	%
Other securities		1,315		—		—			1,315		0.05	%
Unallocated portfolio layer fair value basis adjustments (1)		10,893		—		(10,893	)		—		0.00	%
Total available-for-sale securities	$	3,333,603	$	61	$	(496,564	)	$	2,837,100		100.00	%
Investment securities held-to-maturity:
Government agency/GSE	$	526,752	$	—	$	(103,672	)	$	423,080		21.46	%
Mortgage-backed securities		652,864		—		(109,336	)		543,528		26.60	%
CMO/REMIC		798,226		—		(162,528	)		635,698		32.52	%
Municipal bonds		465,289		2,223		(37,242	)		430,270		18.96	%
Other securities		11,455		—		—			11,455		0.46	%
Total held-to-maturity securities	$	2,454,586	$	2,223	$	(412,778	)	$	2,044,031		100.00	%


	December 31, 2023
	Amortized Cost			Gross Unrealized Holding Gain		Gross Unrealized Holding Loss			Fair Value		Total Percent
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,229		$	24	$	—		$	32,253		1.09	%
Mortgage-backed securities		2,843,744			42		(336,107	)		2,507,679		84.83	%
CMO/REMIC		502,234			—		(112,872	)		389,362		13.17	%
Municipal bonds		26,477			46		(888	)		25,635		0.87	%
Other securities		1,196			—		—			1,196		0.04	%
Unallocated portfolio layer fair value basis adjustments (1)		(6,938	)		6,938		—			—		0.00	%
Total available-for-sale securities	$	3,398,942		$	7,050	$	(449,867	)	$	2,956,125		100.00	%

Investment securities held-to-maturity:
Government agency/GSE	$	530,656		$	—	$	(97,972	)	$	432,684		21.53	%
Mortgage-backed securities		663,090			—		(97,436	)		565,654		26.90	%
CMO/REMIC		802,892			—		(156,155	)		646,737		32.58	%
Municipal bonds		467,972			3,438		(33,604	)		437,806		18.99	%
Total held-to-maturity securities	$	2,464,610		$	3,438	$	(385,167	)	$	2,082,881		100.00	%

(1)

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax.


	Three Months Ended
	March 31,
	2024		2023
	(Dollars in thousands)
Investment securities available-for-sale:
Taxable	$	21,280	$	19,428
Tax-advantaged		166		168
Total interest income from available-for-sale securities		21,446		19,596
Investment securities held-to-maturity:
Taxable		10,984		11,507
Tax-advantaged		2,418		2,449
Total interest income from held-to-maturity securities		13,402		13,956
Total interest income from investment securities	$	34,848	$	33,552

Approximately 90% of the total investment securities portfolio at March 31, 2024 represents securities issued by the U.S. government or U.S. government-sponsored enterprises, with the implied guarantee of payment of principal and interest. The remaining securities are predominately AA or better general-obligation municipal bonds. The allowance for credit losses for held-to-maturity investment securities under the CECL model was zero at March 31, 2024 and December 31, 2023.


	March 31, 2024
	Less Than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	32,640	$	(4	)	$	—	$	—		$	32,640	$	(4	)
Mortgage-backed securities		22		—			2,397,803		(367,613	)		2,397,825		(367,613	)
CMO/REMIC		—		—			378,893		(116,682	)		378,893		(116,682	)
Municipal bonds		6,525		(145	)		17,743		(1,227	)		24,268		(1,372	)
Total available-for-sale securities	$	39,187	$	(149	)	$	2,794,439	$	(485,522	)	$	2,833,626	$	(485,671	)
Investment securities held-to-maturity:
Government agency/GSE	$	—	$	—		$	423,080	$	(103,672	)	$	423,080	$	(103,672	)
Mortgage-backed securities		—		—			543,529		(109,336	)		543,529		(109,336	)
CMO/REMIC		—		—			635,698		(162,528	)		635,698		(162,528	)
Municipal bonds		46,060		(649	)		289,996		(36,593	)		336,056		(37,242	)
Total held-to-maturity securities	$	46,060	$	(649	)	$	1,892,303	$	(412,129	)	$	1,938,363	$	(412,778	)


	December 31, 2023
	Less Than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses
	(Dollars in thousands)
Investment securities available-for-sale:
Government agency/GSE	$	—	$	—		$	—	$	—		$	—	$	—
Mortgage-backed securities		48		—			2,506,162		(336,107	)		2,506,210		(336,107	)
CMO/REMIC		—		—			389,359		(112,872	)		389,359		(112,872	)
Municipal bonds		3,286		(17	)		18,105		(871	)		21,391		(888	)
Total available-for-sale securities	$	3,334	$	(17	)	$	2,913,626	$	(449,850	)	$	2,916,960	$	(449,867	)

Investment securities held-to-maturity:
Government agency/GSE	$	—	$	—		$	432,684	$	(97,972	)	$	432,684	$	(97,972	)
Mortgage-backed securities		—		—			565,655		(97,436	)		565,655		(97,436	)
CMO/REMIC		—		—			646,737		(156,155	)		646,737		(156,155	)
Municipal bonds		20,609		(200	)		293,467		(33,404	)		314,076		(33,604	)
Total held-to-maturity securities	$	20,609	$	(200	)	$	1,938,543	$	(384,967	)	$	1,959,152	$	(385,167	)

At December 31, 2023, investment securities with carrying values of $2.26 billion were pledged to secure various types of deposits, including $1.38 billion of public funds. In addition, investment securities with carrying values of $3.02 billion were pledged to secure $372.5 million for repurchase agreements, $1.8 billion for outstanding borrowings, $796 million for unused borrowing capacity and approximately $51 million for other purposes as required or permitted by law.

The amortized cost and fair value of debt securities at March 31, 2024, by contractual maturity, are shown in the table below. Although mortgage-backed and CMO/REMIC securities have weighted average remaining contractual maturities of approximately 23 years, expected maturities will differ from contractual maturities because borrowers may have the right to prepay such obligations without penalty. Mortgage-backed and CMO/REMIC securities are included in maturity categories based upon estimated average lives which incorporate estimated prepayment speeds.


	March 31, 2024
	Available-for-sale				Held-to-maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
			(Dollars in thousands)
Due in one year or less	$	36,409	$	36,328	$	3,565	$	3,554
Due after one year through five years		264,422		241,797		52,525		50,505
Due after five years through ten years		2,519,475		2,164,588		317,491		280,289
Due after ten years		513,297		394,387		2,081,005		1,709,683
Total investment securities	$	3,333,603	$	2,837,100	$	2,454,586	$	2,044,031

The investment in FHLB stock is periodically evaluated for impairment based on, among other things, the capital adequacy of the FHLB and its overall financial condition. No impairment losses have been recorded through March 31, 2024.

Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Cash dividends per common share	$ 0.2	$ 0.2

Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Derivative Instruments

he location of the asset and liability, and their respective fair values, are summarized in the tables below.


	March 31, 2024
	Asset Derivatives					Liability Derivatives
	Notional		Balance Sheet Location	Fair Value		Notional		Balance Sheet Location	Fair Value
	(Dollars in thousands)
Derivatives not designated as hedging instruments:
Interest rate swaps	$	390,307	Other assets	$	38	$	390,307	Other liabilities	$	38
Total derivatives				$	38				$	38

Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps	$	1,000,000	Other assets	$	10,893			Other liabilities	$	—
Cash flow hedges: interest rate swaps			Other assets		789	$	300,000	Other liabilities		—
Total				$	11,682				$	—


	December 31, 2023
	Asset Derivatives					Liability Derivatives
	Notional		Balance Sheet Location	Fair Value		Notional		Balance Sheet Location	Fair Value
	(Dollars in thousands)
Derivatives not designated as hedging instruments:
Interest rate swaps	$	394,359	Other assets	$	112	$	394,359	Other liabilities	$	112
Total derivatives				$	112				$	112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps	$	1,000,000	Other assets	$	—			Other liabilities	$	6,938
Total				$	—				$	6,938

Effect of Derivative Instruments on Consolidated Statement of Earnings

The following table summarizes the effect of derivative financial instruments on the condensed consolidated statements of earnings for the periods presented.


	Location of Gain Recognized in Income on Derivative Instruments	Amount of Gain Recognized in Income on Derivative Instruments
		Three Months Ended March 31,
		2024		2023
		(Dollars in thousands)
Derivatives Not Designated as Hedging Instruments:
Interest rate swaps	Other income	$	—	$	—
Total		$	—	$	—


	Location of Gain Recognized in Income on Derivative Instruments	Amount of Gains (Losses) Recognized in Interest Income on Derivative Instruments				OCI Impact on Derivatives-Gains (Losses) recorded in OCI
		Three Months Ended March 31,				Three Months Ended March 31,
		2024		2023		2024		2023
		(Dollars in thousands)				(Dollars in thousands)
Derivatives Designated as Hedging Instruments:
Fair value hedges: interest rate swaps	Interest income	$	3,687	$	—	$	12,869	$	—
Cash flow hedges: interest rate swaps	Interest expense		178		—		556		—
Total		$	3,865	$	—	$	13,425	$	—

Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Summary of Components of Other Comprehensive Income

The table below provides a summary of the components of other comprehensive income (“OCI”) for the periods presented.


	Three Months Ended March 31,
	2024									2023
	Before-tax			Tax effect			After-tax			Before-tax		Tax effect			After-tax
	(Dollars in thousands)
Investment securities:
Net change in fair value recorded in accumulated OCI	$	(35,856	)	$	10,600		$	(25,256	)	$	40,424	$	(11,951	)	$	28,473
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity		163			(48	)		115			278		(82	)		196
Derivatives designated as hedging instruments:
Fair value hedges:
Net change in fair value recorded in accumulated OCI		17,831			(4,962	)		12,869			—		—			—
Cash flow hedges:
Net change in fair value recorded in accumulated OCI		789			(233	)		556			—		—			—
Net change	$	(17,073	)	$	5,357		$	(11,716	)	$	40,702	$	(12,033	)	$	28,669

Investment Securities - Summary of Continuous Unrealized Loss Position of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Investments [Line Items]
Fair Value, Less Than 12 Months, Available-for-sale	$ 39,187	$ 3,334
Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale	(149)	(17)
Fair Value, 12 Months or Longer, Available-for-sale	2,794,439	2,913,626
Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale	(485,522)	(449,850)
Fair Value, Available-for-sale	2,833,626	2,916,960
Gross Unrealized Holding Losses, Available-for-sale	(485,671)	(449,867)
Fair Value, Less Than 12 Months, Held-to-maturity	46,060	20,609
Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity	(649)	(200)
Fair Value, 12 Months or Longer, Held-to-maturity	1,892,303	1,938,543
Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity	(412,129)	(384,967)
Fair Value, Held-to-maturity	1,938,363	1,959,152
Gross Unrealized Holding Losses, Held-to-maturity	(412,778)	(385,167)
CMO/REMIC [Member]
Schedule of Investments [Line Items]
Fair Value, Less Than 12 Months, Available-for-sale	0	0
Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale	0	0
Fair Value, 12 Months or Longer, Available-for-sale	378,893	389,359
Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale	(116,682)	(112,872)
Fair Value, Available-for-sale	378,893	389,359
Gross Unrealized Holding Losses, Available-for-sale	(116,682)	(112,872)
Fair Value, Less Than 12 Months, Held-to-maturity	0	0
Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity	0	0
Fair Value, 12 Months or Longer, Held-to-maturity	635,698	646,737
Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity	(162,528)	(156,155)
Fair Value, Held-to-maturity	635,698	646,737
Gross Unrealized Holding Losses, Held-to-maturity	(162,528)	(156,155)
Government Agency/GSE [Member]
Schedule of Investments [Line Items]
Fair Value, Less Than 12 Months, Available-for-sale	32,640	0
Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale	(4)	0
Fair Value, 12 Months or Longer, Available-for-sale	0	0
Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale	0	0
Fair Value, Available-for-sale	32,640	0
Gross Unrealized Holding Losses, Available-for-sale	(4)	0
Fair Value, Less Than 12 Months, Held-to-maturity	0	0
Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity	0	0
Fair Value, 12 Months or Longer, Held-to-maturity	423,080	432,684
Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity	(103,672)	(97,972)
Fair Value, Held-to-maturity	423,080	432,684
Gross Unrealized Holding Losses, Held-to-maturity	(103,672)	(97,972)
Mortgage-backed Securities [Member]
Schedule of Investments [Line Items]
Fair Value, Less Than 12 Months, Available-for-sale	22	48
Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale	0	0
Fair Value, 12 Months or Longer, Available-for-sale	2,397,803	2,506,162
Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale	(367,613)	(336,107)
Fair Value, Available-for-sale	2,397,825	2,506,210
Gross Unrealized Holding Losses, Available-for-sale	(367,613)	(336,107)
Fair Value, Less Than 12 Months, Held-to-maturity	0	0
Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity	0	0
Fair Value, 12 Months or Longer, Held-to-maturity	543,529	565,655
Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity	(109,336)	(97,436)
Fair Value, Held-to-maturity	543,529	565,655
Gross Unrealized Holding Losses, Held-to-maturity	(109,336)	(97,436)
Municipal Bonds [Member]
Schedule of Investments [Line Items]
Fair Value, Less Than 12 Months, Available-for-sale	6,525	3,286
Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale	(145)	(17)
Fair Value, 12 Months or Longer, Available-for-sale	17,743	18,105
Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale	(1,227)	(871)
Fair Value, Available-for-sale	24,268	21,391
Gross Unrealized Holding Losses, Available-for-sale	(1,372)	(888)
Fair Value, Less Than 12 Months, Held-to-maturity	46,060	20,609
Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity	(649)	(200)
Fair Value, 12 Months or Longer, Held-to-maturity	289,996	293,467
Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity	(36,593)	(33,404)
Fair Value, Held-to-maturity	336,056	314,076
Gross Unrealized Holding Losses, Held-to-maturity	$ (37,242)	$ (33,604)

Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Components of Loans and Lease Finance Receivables, Including PCI Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Construction	$ 58,806	$ 66,734
Total loans, at amortized cost	8,770,713	8,904,910
Less: Allowance for credit losses	(82,817)	(86,842)	$ (86,540)	$ (85,117)
Net loans and lease finance receivables	8,687,896	8,818,068
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	963,120	969,895
Total loans, at amortized cost	963,120	969,895
SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	268,320	270,619
Total loans, at amortized cost	268,320	270,619
SBA - Paycheck Protection Program (PPP) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	2,249	2,736
Total loans, at amortized cost	2,249	2,736
Commercial real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	6,720,538	6,784,505
SFR mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	276,475	269,868
Total loans, at amortized cost	276,475	269,868
Dairy And Livestock And Agribusiness [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	351,624	412,891
Total loans, at amortized cost	351,624	412,891
Municipal Lease Finance Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	72,032	73,590
Total loans, at amortized cost	72,032	73,590
Less: Allowance for credit losses	(194)	(210)	$ (283)	$ (296)
Consumer and other loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable gross	57,549	54,072
Total loans, at amortized cost	$ 57,549	$ 54,072

Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2022	$ 1,948,517	$ 1,300,466	$ 1,002,847	$ (354,796)
Beginning balance, shares at Dec. 31, 2022		139,819
Repurchase of common stock	(21,036)	$ (21,036)
Repurchase of common stock, shares		(918)
Exercise of stock options	72	$ 72
Exercise of stock options, shares		4
Shares issued pursuant to stock-based compensation plan	2,284	$ 2,284
Shares issued pursuant to stock-based compensation plan, shares		397
Cash dividends declared on common stock	(28,007)		(28,007)
Net earnings	59,270		59,270
Other comprehensive income (loss)	28,669			28,669
Ending balance at Mar. 31, 2023	1,989,769	$ 1,281,786	1,034,110	(326,127)
Ending balance, shares at Mar. 31, 2023		139,302
Beginning balance at Dec. 31, 2023	2,077,972	$ 1,288,899	1,112,642	(323,569)
Beginning balance, shares at Dec. 31, 2023		139,345
Repurchase of common stock	(2,573)	$ (2,573)
Repurchase of common stock, shares		(146)
Exercise of stock options	43	$ 43
Exercise of stock options, shares		3
Shares issued pursuant to stock-based compensation plan	2,386	$ 2,386
Shares issued pursuant to stock-based compensation plan, shares		440
Cash dividends declared on common stock	(27,886)		(27,886)
Net earnings	48,599		48,599
Other comprehensive income (loss)	(11,716)			(11,716)
Ending balance at Mar. 31, 2024	$ 2,086,825	$ 1,288,755	$ 1,133,355	$ (335,285)
Ending balance, shares at Mar. 31, 2024		139,642

Business - Additional Information (Detail) $ in Thousands	Mar. 31, 2024 USD ($) Location Subsidiary Center	Dec. 31, 2023 USD ($)
Schedule Of Description Of Company [Line Items]
Number of inactive subsidiaries \| Subsidiary	1
Bank operated banking centers \| Center	62
Bank operated trust office locations, number \| Location	3
Total assets	$ 16,468,146	$ 16,020,993
Bank owned life insurance (BOLI)	310,744	308,706
Goodwill	$ 765,822	$ 765,822

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 810
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 810
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-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481231/810-10-45-25

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.4-08(g)(1)(ii))
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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-Paragraph 28
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Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
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-Name Accounting Standards Codification
-Section 55
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481372/852-10-55-10

Reference 7: http://www.xbrl.org/2003/role/exampleRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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-Paragraph 1
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Section S99
-Paragraph 1
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1A
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-URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A

Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
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-Name Accounting Standards Codification
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-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
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Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 24: http://www.xbrl.org/2003/role/disclosureRef
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Reference 25: http://www.xbrl.org/2003/role/disclosureRef
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Reference 26: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Other Comprehensive Income

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Other Comprehensive Income

10. OTHER COMPREHENSIVE INCOME

The table below provides a summary of the components of other comprehensive income (“OCI”) for the periods presented.


	Three Months Ended March 31,
	2024									2023
	Before-tax			Tax effect			After-tax			Before-tax		Tax effect			After-tax
	(Dollars in thousands)
Investment securities:
Net change in fair value recorded in accumulated OCI	$	(35,856	)	$	10,600		$	(25,256	)	$	40,424	$	(11,951	)	$	28,473
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity		163			(48	)		115			278		(82	)		196
Derivatives designated as hedging instruments:
Fair value hedges:
Net change in fair value recorded in accumulated OCI		17,831			(4,962	)		12,869			—		—			—
Cash flow hedges:
Net change in fair value recorded in accumulated OCI		789			(233	)		556			—		—			—
Net change	$	(17,073	)	$	5,357		$	(11,716	)	$	40,702	$	(12,033	)	$	28,669

Leases - Components of lease costs and supplemental information related to leases (Detail) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2024

Mar. 31, 2023

Dec. 31, 2023

Lease Assets and Liabilities

Operating Lease, Right-of-Use Asset

$ 20,666

$ 21,655

Total lease liabilities

$ 23,037

$ 24,056

Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]

Other liabilities

Lease Cost

Operating lease expense (1)

^[1]

$ 1,845

$ 1,841

Sublease income

Total lease expense

1,845

1,841

Other Information

Operating cash outflows from operating leases, net

$ 1,864

$ 1,756

Lease Term and Discount Rate

Weighted average remaining lease term (years)

3 years 10 months 2 days

3 years 11 months 8 days

Weighted average discount rate

3.58%

3.48%

[1]	Includes short-term leases and variable lease costs, which are immaterial.

Balance Sheet Offsetting - Schedule of Balance Sheet Offsetting (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Repurchase Agreements [Member]
Offsetting Assets Liabilities [Line Items]
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	$ 275,720	$ 271,642
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	275,720	271,642
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	0	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	360,312	362,505
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	636,032	634,147
Interest Rate Swaps [Member]
Offsetting Assets Liabilities [Line Items]
Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	11,720	112
Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Financial assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	11,720	112
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	11,720	112
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	323,227	321,193
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(47,469)	(42,501)
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	275,758	271,754
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	47,469	49,439
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	344,485	350,846
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	667,712	672,039
Interest Rate Swaps [Member] \| Fair Value Hedges [Member]
Offsetting Assets Liabilities [Line Items]
Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	10,893
Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Financial assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	10,893
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	10,893
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	0
Interest Rate Swaps [Member] \| Cash Flow Hedges [Member]
Offsetting Assets Liabilities [Line Items]
Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	789
Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Financial assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	789
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	789
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	0
Interest Rate Swaps [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Offsetting Assets Liabilities [Line Items]
Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	38	112
Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Financial assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	38	112
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0	0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	38	112
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	47,507	42,613
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(47,469)	(42,501)
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	38	112
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	47,469	42,501
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	(15,827)	(11,659)
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	31,680	30,954
Interest Rate Swaps [Member] \| Derivatives designated as hedging instruments [Member]
Offsetting Assets Liabilities [Line Items]
Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets		0
Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets		0
Financial assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets		0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments		0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged		0
Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount		0
Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets	0	6,938
Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Financial liabilities, Net Amounts Presented in the Condensed Consolidated Balance Sheets	0	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	0	6,938
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged	0	0
Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount	$ 0	$ 6,938

Mar. 31, 2024

Dec. 31, 2023

Accounts, Notes, Loans and Financing Receivable [Line Items]

Nonaccruing loans, current

$ 608,000

$ 13

Nonaccrual

13,810,000

^[1],[2]

21,302,000

^[3]

Small Business Administration [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Nonaccrual

54,000

^[1],[2]

969,000

^[3]

30-59 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Nonaccrual

16,000,000

60-89 Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Nonaccrual

$ 13,200,000

90+ Days Past Due [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Nonaccrual

$ 8,300,000

[1]	As of March 31, 2024, $608,000 of nonaccruing loans were current and $13.2 million were 90+ days past due.
[2]	There were no guaranteed portion of nonaccrual SBA loans that are in process of collection.
[3]	As of December 31, 2023, $13.0 million of nonaccruing loans were current, $16,000 were 30-59 days past due, and $8.3 million were 90+ days past due.

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Significant Accounting Policies

3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Except as discussed below, our accounting policies are described in Note 3 – Summary of Significant Accounting Policies, of our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC (“Form 10-K”).

Use of Estimates in the Preparation of Financial Statements — The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. A material estimate that is particularly susceptible to significant change in the near term relates to the determination of the allowance for credit losses. Other significant estimates, which may be subject to change, include fair value determinations and disclosures, impairment of investments, goodwill, loans, as well as valuation of deferred tax assets.

Fair Value Information (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis as of the dates presented.


	Carrying Value at March 31, 2024		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Description of assets
Investment securities - AFS:
Government agency/GSE	$	32,640	$	—	$	32,640	$	—
Mortgage-backed securities		2,399,107		—		2,399,107		—
CMO/REMIC		378,894		—		378,894		—
Municipal bonds		25,144		—		25,144		—
Other securities		1,315		—		1,315		—
Total investment securities - AFS		2,837,100		—		2,837,100		—
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—		10,893		—
Cash flow hedges: interest rate swaps		789		—		789		—
Total assets	$	2,848,820	$	—	$	2,848,820	$	—
Description of liability
Derivatives not designated as hedging instruments:
Interest rate swaps	$	38	$	—	$	38	$	—
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—
Cash flow hedges: interest rate swaps		—		—		—		—
Total liabilities	$	38	$	—	$	38	$	—


	Carrying Value at December 31, 2023		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Description of assets
Investment securities - AFS:
Government agency/GSE	$	32,253	$	—	$	32,253	$	—
Mortgage-backed securities		2,507,679		—		2,507,679		—
CMO/REMIC		389,362		—		389,362		—
Municipal bonds		25,635		—		25,635		—
Other securities		1,196		—		1,196		—
Total investment securities - AFS		2,956,125		—		2,956,125		—
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—
Derivatives designated as hedging instruments:
Interest rate swaps		—		—		—		—
Total assets	$	2,956,237	$	—		2,956,237	$	—
Description of liability
Derivatives not designated as hedging instruments:
Interest rate swaps	$	112	$	—	$	112	$	—
Derivatives designated as hedging instruments:
Interest rate swaps		6,938		—		6,938		—
Total liabilities	$	7,050	$	—	$	7,050	$	—

Assets and Liabilities Measured at Fair Value on Non-Recurring Basis

the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets that had losses during the period.


	Carrying Value at March 31, 2024		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Losses For the Three Months Ended March 31, 2024
	(Dollars in thousands)
Description of assets
Loans:
Commercial real estate	$	13,813	$	—	$	—	$	13,813	$	2,258
Construction		—		—		—		—		—
SBA		211		—		—		211		26
SBA - PPP		—		—		—		—		—
Commercial and industrial		4,612		—		—		4,612		16
Dairy & livestock and agribusiness		5,787		—		—		5,787		—
Municipal lease finance receivables		—		—		—		—		—
SFR mortgage		308		—		—		308		—
Consumer and other loans		—		—		—		—		—
Other real estate owned		—		—		—		—		—
Asset held-for-sale		—		—		—		—		—
Total assets	$	24,731	$	—	$	—	$	24,731	$	2,300


	Carrying Value at December 31, 2023		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Losses For the Year Ended December 31, 2023
	(Dollars in thousands)
Description of assets
Loans:
Commercial real estate	$	18,678	$	—	$	—	$	18,678	$	2,128
Construction		—		—		—		—		—
SBA		995		—		—		995		57
SBA - PPP		—		—		—		—		—
Commercial and industrial		6,092		—		—		6,092		3,510
Dairy & livestock and agribusiness		4,700		—		—		4,700		27
Municipal lease finance receivables		—		—		—		—		—
SFR mortgage		—		—		—		—		—
Consumer and other loans		—		—		—		—		—
Other real estate owned		—		—		—		—		—
Asset held-for-sale		—		—		—		—		—
Total assets	$	30,465		—		—	$	30,465	$	5,722

Estimated Fair Value of Financial Instruments

The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts.


	March 31, 2024
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Assets
Total cash and cash equivalents	$	949,589	$	949,589	$	—	$	—	$	949,589
Interest-earning balances due from depository institutions		12,632		—		12,632		—		12,632
Investment securities available-for-sale		2,837,100		—		2,837,100		—		2,837,100
Investment securities held-to-maturity		2,454,586		—		2,044,031		—		2,044,031
Total loans, net of allowance for credit losses		8,687,896		—		—		8,273,529		8,273,529
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—		38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		10,893		—		10,893		—		10,893
Cash flow hedges: interest rate swaps		789		—		789		—		789
Liabilities
Deposits:
Interest-bearing	$	4,782,132	$	—	$	4,777,393	$	—	$	4,777,393
Borrowings		2,270,720		—		2,204,434		—		2,204,434
Derivatives not designated as hedging instruments:
Interest rate swaps		38		—		38		—		38
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—		—
Cash flow hedges: interest rate swaps		—		—		—		—		—


	December 31, 2023
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Assets
Total cash and cash equivalents	$	281,285	$	281,285	$	—	$	—	$	281,285
Interest-earning balances due from depository institutions		8,216		—		8,216		—		8,216
Investment securities available-for-sale		2,956,125		—		2,956,125		—		2,956,125
Investment securities held-to-maturity		2,464,610		—		2,082,881		—		2,082,881
Total loans, net of allowance for credit losses		8,818,068		—		—		8,503,518		8,503,518
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—		112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		—		—		—		—		—
Liabilities
Deposits:
Interest-bearing	$	4,227,467	$	—	$	4,222,773	$	—	$	4,222,773
Borrowings		2,341,642		—		2,283,631		—		2,283,631
Derivatives not designated as hedging instruments:
Interest rate swaps		112		—		112		—		112
Derivatives designated as hedging instruments:
Fair value hedges: interest rate swaps		6,938		—		6,938		—		6,938

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2024	Apr. 30, 2024
Cover [Abstract]
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000354647
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2024
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Document Period End Date	Mar. 31, 2024
Entity Registrant Name	CVB FINANCIAL CORP.
Entity Current Reporting Status	Yes
Trading Symbol	CVBF
Title of 12(b) Security	Common Stock, No Par Value
Security Exchange Name	NASDAQ
Entity File Number	000-10140
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-3629339
Entity Address, Address Line One	701 North Haven Ave.
Entity Address, Address Line Two	Suite 350
Entity Address, City or Town	Ontario
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91764
City Area Code	909
Local Phone Number	980-4030
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		139,639,680

Borrowings (Additional Information) (Details) - USD ($) $ in Thousands			12 Months Ended
	Dec. 31, 2024	May 31, 2024	Dec. 31, 2023	Mar. 31, 2024
Debt Instrument [Line Items]
Customer repurchase agreements			$ 271,642	$ 275,720
Weighted average interest rates			0.29%	0.41%
Investment securities with carrying value				$ 2,510,000
Secured Public Fund [Member]
Debt Instrument [Line Items]
Investment securities with carrying value				1,370,000
Secured Debt
Debt Instrument [Line Items]
Investment securities with carrying value				2,750,000
Repurchase Agreements
Debt Instrument [Line Items]
Investment securities with carrying value				372,300
Borrowings
Debt Instrument [Line Items]
Investment securities with carrying value				1,880,000
Unused borrowing capacity
Debt Instrument [Line Items]
Investment securities with carrying value				446,000
Other Purposes
Debt Instrument [Line Items]
Investment securities with carrying value				51,000
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Weighted average interest rates			5.70%
Short term borrowings			$ 2,070,000
Short Term Advances			$ 1,910,000
Subordinated Borrowing, Interest Rate			4.78%
Other Short-Term Borrowings			$ 160,000
Maturities of Subordinated Debt	$ 1,200,000	$ 695,000
Loans pledged as collaterals				4,240
Federal Reserve's Bank Term Funding Program [Member]
Debt Instrument [Line Items]
Total borrowings				$ 2,000,000
Borrowed funds cost percentage				4.75%
BTFP advances current maturities				$ 695,000
BTFP advances non current maturities				$ 1,300,000

Earnings Per Share Reconciliation - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per common share	1,021,000	348,000

Fair Value Information - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) - Fair Value on Non-Recurring Basis [Member] - Loans, Excluding PCI Loans [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Description of assets
Total assets	$ 2,300	$ 5,722
Asset Held-for-Sale [Member]
Description of assets
Total assets		0
Commercial Real Estate [Member]
Description of assets
Total assets	2,258	2,128
Construction [Member]
Description of assets
Total assets	0	0
SBA
Description of assets
Total assets	26	57
SBA - PPP [Member]
Description of assets
Total assets	0	0
Commercial and Industrial [Member]
Description of assets
Total assets	16	3,510
Dairy & Livestock and Agribusiness [Member]
Description of assets
Total assets	0	27
Municipal Lease Finance Receivables [Member]
Description of assets
Total assets	0	0
SFR Mortgage [Member]
Description of assets
Total assets	0	0
Consumer and Other Loans [Member]
Description of assets
Total assets	0	0
Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Level 1 [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Asset Held-for-Sale [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Construction [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| SBA
Description of assets
Total assets	0	0
Level 1 [Member] \| SBA - PPP [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Dairy & Livestock and Agribusiness [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Municipal Lease Finance Receivables [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| SFR Mortgage [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Consumer and Other Loans [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Level 2 [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Asset Held-for-Sale [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Construction [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| SBA
Description of assets
Total assets	0	0
Level 2 [Member] \| SBA - PPP [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Dairy & Livestock and Agribusiness [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Municipal Lease Finance Receivables [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| SFR Mortgage [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Consumer and Other Loans [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Level 3 [Member]
Description of assets
Total assets	24,731	30,465
Level 3 [Member] \| Asset Held-for-Sale [Member]
Description of assets
Total assets	0	0
Level 3 [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets	13,813	18,678
Level 3 [Member] \| Construction [Member]
Description of assets
Total assets	0	0
Level 3 [Member] \| SBA
Description of assets
Total assets	211	995
Level 3 [Member] \| SBA - PPP [Member]
Description of assets
Total assets	0	0
Level 3 [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	4,612	6,092
Level 3 [Member] \| Dairy & Livestock and Agribusiness [Member]
Description of assets
Total assets	5,787	4,700
Level 3 [Member] \| Municipal Lease Finance Receivables [Member]
Description of assets
Total assets	0	0
Level 3 [Member] \| SFR Mortgage [Member]
Description of assets
Total assets	308	0
Level 3 [Member] \| Consumer and Other Loans [Member]
Description of assets
Total assets	0	0
Level 3 [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Carrying Value [Member]
Description of assets
Total assets	24,731	30,465
Carrying Value [Member] \| Asset Held-for-Sale [Member]
Description of assets
Total assets	0	0
Carrying Value [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets	13,813	18,678
Carrying Value [Member] \| Construction [Member]
Description of assets
Total assets	0	0
Carrying Value [Member] \| SBA
Description of assets
Total assets	211	995
Carrying Value [Member] \| SBA - PPP [Member]
Description of assets
Total assets	0	0
Carrying Value [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	4,612	6,092
Carrying Value [Member] \| Dairy & Livestock and Agribusiness [Member]
Description of assets
Total assets	5,787	4,700
Carrying Value [Member] \| Municipal Lease Finance Receivables [Member]
Description of assets
Total assets	0	0
Carrying Value [Member] \| SFR Mortgage [Member]
Description of assets
Total assets	308	0
Carrying Value [Member] \| Consumer and Other Loans [Member]
Description of assets
Total assets	0	0
Carrying Value [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets		$ 0

Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Recorded Investments for Past Due Loans at Amortized Cost (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Current [Member]
Financing Receivable, Modified [Line Items]
Total	$ 10,765
30-89 Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
90+ Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Commercial Real Estate [Member] \| Current [Member]
Financing Receivable, Modified [Line Items]
Total	3,152
Commercial Real Estate [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Commercial Real Estate [Member] \| 90+ Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Commercial and Industrial [Member] \| Current [Member]
Financing Receivable, Modified [Line Items]
Total	1,886
Commercial and Industrial [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Commercial and Industrial [Member] \| 90+ Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Dairy & Livestock and Agribusiness [Member] \| Current [Member]
Financing Receivable, Modified [Line Items]
Total	5,727
Dairy & Livestock and Agribusiness [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	0
Dairy & Livestock and Agribusiness [Member] \| 90+ Days Past Due [Member]
Financing Receivable, Modified [Line Items]
Total	$ 0

Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Activity Related to Troubled Debt Restructurings (Detail) $ in Thousands	Mar. 31, 2024 USD ($)
Financing Receivable, Modifications [Line Items]
Beginning balance	$ 5,836
Ending balance	$ 10,765

Investment Securities - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Investment in FHLB stock, impairment losses	$ 0
Debt securities weighted average remaining contractual maturity term	23 years
Total deposits	$ 11,894,921	$ 11,433,642
Debt Securities, Held-to-Maturity, Allowance for Credit Loss	$ 0	0
United States [Member]
Debt Securities, Available-for-Sale [Line Items]
Securities issued by U.S. government percentage	90.00%
Investment Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Investment Securities For Other Purposes	$ 51,000	51,000
Secured unused borrowing capacity	446,000	796,000
Outstanding Borrowings	1,880,000	1,800,000
Secure Public Funds	372,300	372,500
Pledged To Secure Unused Borrowing Capacity	2,750,000	3,020,000
Total deposits	1,370,000	1,380,000
Pledged To Secure	$ 2,510,000	$ 2,260,000

Earnings Per Share Reconciliation - Schedule of Earnings Per Common Share Reconciliation (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings per common share:
Net earnings	$ 48,599	$ 59,270
Less: Net earnings allocated to restricted stock	324	407
Net earnings allocated to common shareholders	$ 48,275	$ 58,863
Weighted average shares outstanding	138,429	138,592
Basic earnings per common share	$ 0.35	$ 0.42
Diluted earnings per common share:
Net income allocated to common shareholders	$ 48,275	$ 58,863
Weighted average shares outstanding	138,429	138,592
Incremental shares from assumed exercise of outstanding options	174	361
Diluted weighted average shares outstanding	138,603	138,953
Diluted earnings per common share	$ 0.35	$ 0.42

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets
Cash and due from banks	$ 131,955	$ 171,396
Interest-earning balances due from Federal Reserve	817,634	109,889
Total cash and cash equivalents	949,589	281,285
Interest-earning balances due from depository institutions	12,632	8,216
Investment securities available-for-sale, at fair value (with amortized cost of $3,333,603 at March 31, 2024, and $3,398,942 at December 31, 2023)	2,837,100	2,956,125
Investment securities held-to-maturity (with fair value of $2,044,031 at March 31, 2024, and $2,082,881 at December 31, 2023)	2,454,586	2,464,610
Total investment securities	5,291,686	5,420,735
Investment in stock of Federal Home Loan Bank (FHLB)	18,012	18,012
Loans and lease finance receivables	8,770,713	8,904,910
Allowance for credit losses	(82,817)	(86,842)
Net loans and lease finance receivables	8,687,896	8,818,068
Premises and equipment, net	43,448	44,709
Bank owned life insurance (BOLI)	310,744	308,706
Accrued interest receivable	47,891	48,994
Intangibles	13,853	15,291
Goodwill	765,822	765,822
Income taxes	180,750	163,968
Other assets	145,823	127,187
Total assets	16,468,146	16,020,993
Deposits:
Noninterest-bearing	7,112,789	7,206,175
Interest-bearing	4,782,132	4,227,467
Total deposits	11,894,921	11,433,642
Customer repurchase agreements	275,720	271,642
Other borrowings	1,995,000	2,070,000
Deferred compensation	23,082	22,335
Accrued interest payable	45,404	23,268
Other liabilities	147,194	122,134
Total liabilities	14,381,321	13,943,021
Commitments and Contingencies
Stockholders' Equity
Common stock, authorized, 225,000,000 shares without par; issued and outstanding 139,641,884 at March 31, 2024, and 139,344,981 at December 31, 2023	1,288,755	1,288,899
Retained earnings	1,133,355	1,112,642
Accumulated other comprehensive income, net of tax	(335,285)	(323,569)
Total stockholders' equity	2,086,825	2,077,972
Total liabilities and stockholders' equity	$ 16,468,146	$ 16,020,993