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Disclosure - Investment Securities - Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Detail) link:presentationLink link:calculationLink link:definitionLink 996057 - Disclosure - Investment Securities - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996067 - Disclosure - Loans and Lease Finance Receivables and Allowance for Credit Losses - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996077 - Disclosure - Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Components of Loans and Lease Finance Receivables, Including PCI Loans (Detail) link:presentationLink link:calculationLink link:definitionLink 996087 - Disclosure - 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) link:presentationLink link:calculationLink link:definitionLink 996097 - Disclosure - 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) link:presentationLink link:calculationLink link:definitionLink 996107 - Disclosure - 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) link:presentationLink link:calculationLink link:definitionLink 996117 - Disclosure - 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 (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 996127 - Disclosure - Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Recorded Investment in Collateral-Dependent loans (Detail) link:presentationLink link:calculationLink link:definitionLink 996137 - Disclosure - Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Amortized Cost of Loans Activity (Details) link:presentationLink link:calculationLink link:definitionLink 996147 - Disclosure - Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Recorded Investments for Past Due Loans at Amortized Cost (Details) link:presentationLink link:calculationLink link:definitionLink 996157 - Disclosure - Other Real Estate Owned - Summary of Activity Related to Total OREO (Detail) link:presentationLink link:calculationLink link:definitionLink 996167 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996177 - Disclosure - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) link:presentationLink link:calculationLink link:definitionLink 996187 - Disclosure - Goodwill and Other Intangible Assets - Summary of Amortizable Intangible Assets (Detail) link:presentationLink link:calculationLink link:definitionLink 996197 - Disclosure - Premises and Equipment - Schedule of Premises and Equipment (Detail) link:presentationLink link:calculationLink link:definitionLink 996207 - Disclosure - Premises and Equipment - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996217 - Disclosure - Other Assets - Summary of Other Assets (Detail) link:presentationLink link:calculationLink link:definitionLink 996227 - Disclosure - Income Taxes - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996237 - Disclosure - Income Taxes - Schedule of Income Tax Expense (Detail) link:presentationLink link:calculationLink link:definitionLink 996247 - Disclosure - Income Taxes - Schedule of Income Tax Asset (Detail) link:presentationLink link:calculationLink link:definitionLink 996257 - Disclosure - Income Taxes - Schedule of cash paid for income taxes (Details) link:presentationLink link:calculationLink link:definitionLink 996267 - Disclosure - Income Taxes - Components of Net Deferred Tax Asset (Detail) link:presentationLink link:calculationLink link:definitionLink 996277 - Disclosure - Income Taxes - Reconciliation of Statutory Income Tax Rate to Consolidated Effective Income Tax Rate (Detail) link:presentationLink link:calculationLink link:definitionLink 996287 - Disclosure - Income Taxes - Schedule of Balances of the Company's tax credit Investments and Related Unfunded Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 996297 - Disclosure - Income Taxes - Schedule of Other Information related to the Company's Tax Credit Investments (Details) link:presentationLink link:calculationLink link:definitionLink 996307 - Disclosure - Deposits - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996317 - Disclosure - Deposits - Composition of Deposits (Detail) link:presentationLink link:calculationLink link:definitionLink 996327 - Disclosure - Deposits - Scheduled Maturities of Time Certificates of Deposit (Detail) link:presentationLink link:calculationLink link:definitionLink 996337 - Disclosure - Borrowings - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996347 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996357 - Disclosure - Employee Benefit Plans - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996367 - Disclosure - Earnings Per Share Reconciliation - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996377 - Disclosure - Earnings Per Share Reconciliation - Schedule of Earnings Per Common Share Reconciliation (Detail) link:presentationLink link:calculationLink link:definitionLink 996387 - Disclosure - Stock-Based Compensation Plans - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996397 - Disclosure - Stock-Based Compensation Plans - Estimated Fair Value of Stock Options (Detail) link:presentationLink link:calculationLink link:definitionLink 996407 - Disclosure - Stock-Based Compensation Plans - Option Activity under Company's Stock Option Plans (Detail) link:presentationLink link:calculationLink link:definitionLink 996417 - Disclosure - Stock-Based Compensation Plans - Summary of Status of Company's Non-Vested Restricted Shares (Detail) link:presentationLink link:calculationLink link:definitionLink 996427 - Disclosure - Stock-Based Compensation Plans - Summary of Status of Company's Non-Vested Restricted Shares (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996437 - Disclosure - Regulatory Matters - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996447 - Disclosure - Regulatory Matters - Regulatory Capital Amounts and Ratios for Company and Bank (Detail) link:presentationLink link:calculationLink link:definitionLink 996457 - Disclosure - Fair Value Information - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 996467 - Disclosure - Fair Value Information - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 996477 - Disclosure - Fair Value Information - Estimated Fair Value of Financial Instruments (Detail) link:presentationLink link:calculationLink link:definitionLink 996487 - Disclosure - Derivative Financial Instruments - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 996497 - Disclosure - Derivative Financial Instruments - Fair Value of Derivative Instruments (Detail) link:presentationLink link:calculationLink link:definitionLink 996507 - Disclosure - Derivative Financial Instruments - Effect of Derivative Instruments on Consolidated Statement of Earnings (Detail) link:presentationLink link:calculationLink link:definitionLink 996517 - Disclosure - Other Comprehensive Income (Loss) - Summary of Components of OCI (Detail) link:presentationLink link:calculationLink link:definitionLink 996527 - Disclosure - Balance Sheet Offsetting (Additional Information) (Details) link:presentationLink link:calculationLink link:definitionLink 996537 - Disclosure - Balance Sheet Offsetting - Schedule of Balance Sheet Offsetting (Detail) link:presentationLink link:calculationLink link:definitionLink 996547 - Disclosure - Leases (Additional Information) (Details) link:presentationLink link:calculationLink link:definitionLink 996557 - Disclosure - Leases - Components of lease costs and supplemental information related to leases (Detail) link:presentationLink link:calculationLink link:definitionLink 996567 - Disclosure - Leases - Future lease payments required for leases that have initial or remaining non-cancelable lease terms (Detail) link:presentationLink link:calculationLink link:definitionLink 996577 - Disclosure - Leases - Future lease payments required for leases that have initial or remaining non-cancelable lease terms (Detail) 3 link:presentationLink link:calculationLink link:definitionLink 996587 - Disclosure - Revenue Recognition - Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606 (Detail) link:presentationLink link:calculationLink link:definitionLink 996597 - Disclosure - Condensed Financial Information of Parent Company - Condensed Balance Sheets (Detail) link:presentationLink link:calculationLink link:definitionLink 996607 - Disclosure - Condensed Financial Information of Parent Company - Condensed Statements of Earnings (Detail) link:presentationLink link:calculationLink link:definitionLink 996617 - Disclosure - Condensed Financial Information of Parent Company - Condensed Statements of Cash Flows (Detail) link:presentationLink link:calculationLink link:definitionLink 996627 - Disclosure - Quarterly Financial Data - Summarized Quarterly Financial Data (Detail) link:presentationLink link:calculationLink link:definitionLink 996637 - Disclosure - SUBSEQUENT EVENTS (Additional Information) (Details) link:presentationLink link:calculationLink link:definitionLink Deferred Tax Liabilities, Tax Deferred Income Deferred income Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Vested, Weighted Average Fair Value Business Combination, Acquisition-Related Cost, Expense Acquisition related expenses Merger related expenses Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Forfeited or expired, Weighted Average Exercise Price Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Financial liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments Financial Asset, Equal to or Greater than 90 Days Past Due [Member] 90+ Days Past Due [Member] Greater than 89 Days Past Due [Member] Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage Commercial real estate loans. Commercial Real Estate Loans [Member] Commercial real estate loans [Member] Interest and Dividend Income, Securities, by Taxable Status [Abstract] Investment securities: Financing Receivables [Text Block] Loans and Lease Finance Receivables and Allowance for Credit Losses Financing Receivable, Allowance for Credit Loss, Writeoff, Total Financing Receivable, Allowance for Credit Loss, Writeoff Allowance For Credit Losses Write Offs Repurchase Agreements [Member] Repurchase Agreements [Member] 2019-2018 Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2023 Construction non speculative. Construction Non Speculative [Member] Construction Non-speculative [Member] Entity Incorporation, State or Country Code Statement of Financial Position Location, Balance [Domain] Balance Sheet Location [Domain] Revision of Prior Period [Axis] Revision of Prior Period [Axis] Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Due in one year or less, Fair Value, Available-for-sale Investment securities with carrying value US Government Agencies Securities, at Carrying Value Tax credits and other tax benefits recognized Tax credits and other tax benefits recognized Tax credits and other tax benefits recognized Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Proceeds from Sale of Buildings Proceeds from sale of building, net of selling costs Plan Name [Axis] Plan Name [Axis] Loans classified as a troubled debt restructured. Loans Classified As Troubled Debt Restructured Loans classified as troubled debt restructured Fair Value, 12 Months or Longer, Available-for-sale Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Equity [Abstract] Entity Current Reporting Status Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Commercial real estate non owner occupied. Commercial Real Estate Non Owner Occupied [Member] Commercial Real Estate Non-owner Occupied [Member] Bank operated banking centers number. Bank Operated Banking Centers Number Bank operated banking centers US Government Agencies Debt Securities [Member] Government Agency/GSE Municipal Bonds [Member] Number of branches. Number Of Branches Number of branches owned by merger company Fair Value, Inputs, Level 2 [Member] Level 2 [Member] Deferred Tax Assets, Net of Valuation Allowance, Total Deferred Tax Assets, Net of Valuation Allowance Income tax asset , Deferred, Total Loans And Leases Receivables Net Reported Amount Loans And Leases Receivables Net Reported Amount Total loans and lease finance receivables, net Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Cash Flow Hedging [Member] Cash Flow Hedging [Member] Proportional Amortization Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Amount Dairy, livestock & agribusiness. Dairy Livestock And Agribusiness [Member] Dairy & Livestock and Agribusiness [Member] Common Stock, Shares Authorized Common stock, authorized Finite-Lived Intangible Asset, Expected Amortization, Year Four 2029 OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Net change in fair value recorded in accumulated OCI, Tax effect Earnings Per Share, Basic [Abstract] Earnings per common share: Investment, Policy [Policy Text Block] Investment Securities Loans receivable percentage of portfolio. Loans Receivable Percentage Of Portfolio Percentage of total gross loan portfolio (excluding PCI loans) Product and Service [Axis] Product and Service [Axis] Document Fiscal Period Focus Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Revenue from Contract with Customer [Abstract] Entity Shell Company Dividends, Common Stock, Cash Cash dividends declared on common stock Segment Reporting, Policy [Policy Text Block] Business Segments Cash and Cash Equivalent Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Total cash and cash equivalents Cash and cash equivalents Trust preferred securities redemption date Trust Preferred Securities Redemption Date Trust preferred securities redemption date Banking Regulation, Capital Conservation Buffer, Common Equity Tier 1 Risk-Based Capital, Actual Capital Conservation Buffer common equity Tier 1 capital ratio Condensed Financial Information Disclosure [Abstract] Receivable Type [Axis] Receivable Type [Axis] Cybersecurity Risk Management, Strategy, and Governance [Abstract] Business combination recognized identifiable assets acquired and liabilities assumed deposits. Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposits Deposits Common Stock, Shares, Issued, Total Common Stock, Shares, Issued Common stock, shares issued Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Cybersecurity Risk Board of Directors Oversight [Text Block] The percentage contribution made by employer to employee benefit plans. Employer Contribution Percentage, Employee Benefit Plan Employer contribution percentage to 401(k) plan Asset Class [Domain] Asset Class [Domain] Statement [Table] Statement [Table] Investment Tax Credit Tax credit investments Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum Tier 1 Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Ratio Minimum Tier 1 risk based capital ratio Operating Loss Carryforwards, Expiration Date Operating Loss Carryforwards, Expiration Date Reconciliation of Net Earnings to Net Cash Provided by Operating Activities Reconciliation Of Net Earnings To Net Cash Provided By Operating Activities [Abstract] Reconciliation Of Net Earnings To Net Cash Provided By Operating Activities [Abstract] Interest Receivable Accrued interest receivable Summary of Financial Effect of the Loan Activity Schedule of Financial Effect of the Loan Activity [Table Text Block] Schedule of Financial Effect of the Loan Activity [Table Text Block] Noninterest-bearing Deposit Liabilities, Total Noninterest-Bearing Deposit Liabilities Noninterest-bearing Noninterest-bearing deposits Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Fair Value, 12 Months or Longer, Held-to-maturity Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value Guarantor Obligations, Nature [Domain] Payments to Acquire Businesses, Gross Acquired assets and assumed liabilities for cash Cash paid 2017-2016 Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2021 Statement [Line Items] Statement [Line Items] Business Combination [Domain] Business Acquisition, Acquiree [Domain] Securities Sold under Agreements to Repurchase [Member] Repurchase Agreements [Member] Banking Regulation, Tier 1 Risk-Based Capital, Actual Tier 1 Capital (to Risk-Weighted Assets), Actual, Amount Entity Filer Category Reclassification, Comparability Adjustment [Policy Text Block] Reclassification Financial Asset, 60 to 89 Days Past Due [Member] 60-89 Days Past Due [Member] Investment Schedule Abstract Investment Schedule [Abstract] Deposits Assets Deposits premium Financing Receivable, Past Due [Table] Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Two Thousand Eight Stock Option Plan [Member] Two Thousand Eight Stock Option Plan [Member] 2008 Stock Option Plan [Member] Noninterest-Bearing Deposit Liabilities [Abstract] Unallocated portfolio layer fair value basis adjustment, Amortized cost Unallocated portfolio layer fair value basis adjustment, Amortized cost Amortized Cost, Available-for-sale Liabilities and Equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Fair value of hedging transaction Fair Value Hedges, Net Fair Value Hedges, Net, Total Derivative Asset, Fair Value, Amount Not Offset Against Collateral, Total Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Financial assets, Gross Amounts Recognized in the Consolidated Balance Sheets Debt Instrument [Line Items] Debt Instrument [Line Items] Residential Mortgage-Backed Securities [Member] Mortgage-backed securities Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date Total Held-to-maturity, Debt Maturities, Amortized Cost Basis Total Past Due Amount of financing receivable past due and accruing. Financing Receivable Recorded Investment Past Due And Accruing Tax settlement received from the Bank. Tax Settlement Received From Bank Tax settlement received from the Bank Noninterest Income Total noninterest income Total noninterest income Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable, Weighted Average Exercise Price Industry Sector [Axis] Recorded Investment, Total impaired loans Impaired Financing Receivable, Recorded Investment Impaired, at carrying value Recorded Investment, Total impaired loans Business combination recognized identifiable assets acquired and liabilities assumed assets including goodwill. Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Including Goodwill Total assets acquired Long-Lived Tangible Asset [Axis] Property, Plant and Equipment, Type [Axis] Operating Loss Carryforwards [Table] Fair Value, by Balance Sheet Grouping [Table Text Block] Estimated Fair Value of Financial Instruments Hedging Relationship [Axis] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Banking Regulation, Tier 1 Leverage Capital, Actual Tier 1 Capital (to Average-Assets), Actual, Amount Quarterly Financial Information Disclosure [Abstract] Financial Asset, 30 to 59 Days Past Due [Member] 30-59 Days Past Due [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent US Federal Statutory Tax Rate, rate Subsequent Event [Line Items] Subsequent Event [Line Items] Cybersecurity Risk Management Third Party Engaged [Flag] Documents Incorporated by Reference [Text Block] Documents Incorporated by Reference Derivative Asset, Notional Amount Derivative Asset Notional Cash Flow Hedge Derivative Instrument Liabilities at Fair Value Goodwill Goodwill, Total Goodwill Balance, end of period Balance, beginning of period Right of use asset Deferred tax liabilities right of use assets. Deferred Tax Liabilities Right Of Use Assets Effective Income Tax Rate Reconciliation, Percent Provision for income taxes, rate Income taxes paid Income Taxes Paid Commercial real estate owner occupied. Commercial Real Estate Owner Occupied [Member] Commercial Real Estate Owner Occupied [Member] Income Tax Jurisdiction [Axis] Income Tax Authority [Axis] Income tax asset current. Income Tax Asset Current Income tax asset , Current, Total Interest and Fee Income, Loans and Leases Held-in-portfolio, Total Interest and Fee Income, Loan and Lease, Held-in-Portfolio Loans and leases, including fees Geographical [Domain] Geographical [Domain] Term Extension [Member] Term Extension [Member] Term Extension Member Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) [Abstract] Identifiable net assets acquired, at fair value Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Due after ten years, Amortized Cost, Available-for-sale Suncrest [Member] Suncrest [Member] Suncrest Member Share based compensation arrangement by share based payment award expiration year. Share Based Compensation Arrangement By Share Based Payment Award Expiration Year Expiry of equity incentive plan Securities Financing Transaction [Axis] Accounts Receivable, Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss, Ending Balance Accounts Receivable, Allowance for Credit Loss, Beginning Balance Allowance for credit losses Less: Allowance for credit losses Liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Number of inactive subsidiaries. Number Of Inactive Subsidiaries Number of inactive subsidiaries Write-down of BOLI Write-down of Bank Owned Life Insurance Write-down of Bank Owned Life Insurance Impairment Effects on Earnings Per Share [Line Items] Weighted average fixed rate Derivative, Average Swaption Interest Rate Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Finite-Lived Intangible Asset, Useful Life Approximately weighted average remaining life of intangible assets Share Repurchase Program [Axis] Guarantor Obligations, Nature [Axis] Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax1 Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax1 Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) After - Tax Interest Income, Debt Securities, Operating Total investment income Deferred Compensation Arrangement with Individual, Compensation Expense Deferred compensation agreements expenses Contingencies And Commitments [Line Items] Contingencies And Commitments [Line Items] Contingencies And Commitments [Line Items] Disaggregation of Revenue [Table] Cybersecurity Risk Management, Strategy, and Governance [Table] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Common Share Reconciliation Change in other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total Increase (Decrease) in Other Operating Assets and Liabilities, Net Change in other assets and liabilities Special Mention [Member] Special Mention [Member] Purchase of BOLI policies Purchase of BOLI Payment to Acquire Life Insurance Policy, Investing Activities Investments Classified by Contractual Maturity Date [Table Text Block] Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity Earnings Per Share, Basic, Total Earnings Per Share, Basic Basic earnings per common share Disaggregation of Revenue [Table Text Block] Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606 Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Gross Unrealized Holding Gain, Held-to-maturity Interest Income, Securities, Operating, Tax Advantaged Tax-advantaged Recently Issued Accounting Standards Not Yet Adopted New Accounting Pronouncements Not Yet Adopted Policy [Policy Text Block] New Accounting Pronouncements Not Yet Adopted Policy [Policy Text Block] Interest-earning deposits with other institutions and federal funds sold. Interest Earning Deposits With Other Institutions And Federal Funds Sold Interest-earning deposits with other institutions Cash Flow Hedge Derivative Instrument Liabilities at Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Outstanding, Number of Stock Options, Ending Balance Outstanding, Number of Stock Options, Beginning Balance Stock option plan, options outstanding Repurchase of common stock, ASR Repurchase of common stock, ASR Repurchase of common stock, ASR Payments for (Proceeds from) Loans and Leases, Total Payments for (Proceeds from) Loans and Leases Net (increase) decrease in loan and lease finance receivables Proceeds from repayment of available-for-sale investment securities. Proceeds From Repayment Of Available For Sale Investment Securities Proceeds from repayment of investment securities available-for-sale Derivative, Gain on Derivative Amount of Gain Recognized in Income on Derivative Instruments Financing Receivable, Modified, Accumulated Percentage of Interest-Bearing Domestic Deposits to Deposits, Checking Investment checking, percentage of total deposits Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net earnings to cash used in operating activities: Adjustments to reconcile net earnings to net cash provided by operating activities: Lessee, Operating Lease, Liability, to be Paid, Year Five 2030 Hedging Designation [Domain] Hedging Designation [Domain] Income Tax Paid, Federal, before Refund Received Federal Income Tax Paid, Federal, after Refund Received Income Tax Paid, Federal, after Refund Received, Total Federal Pledging Purpose [Axis] Domestic Tax Jurisdiction [Member] Federal [Member] Share Repurchase Program [Domain] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years Due after ten years, Amortized Cost, Held-to-maturity Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount Low-income housing tax credits ("LIHTC") and other Offsetting Assets Liabilities [Line Items] Offsetting Assets Liabilities [Line Items] Offsetting Assets Liabilities [Line Items] Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Other liabilities Parent Company [Member] Parent Company [Member] Sale and Leaseback Transaction, Gain (Loss), Net Gain on sale leaseback transactions Gain on sale leaseback transactions Other's Net Other's Net Other's Net Other, net Schedule Of Description Of Company [Table] Schedule Of Description Of Company [Table] Schedule Of Description Of Company [Table] Sale Lease back Transaction Net Proceed Investing Activities Sale Lease back Transaction Net Proceed Investing Activities Proceeds from sale-leaseback transactions Gain On Sale Of Other Real Estate Owned Gain On Sale Of Other Real Estate Owned Gain on sale of OREO Accounting Standards Update [Axis] Adjustments for New Accounting Pronouncements [Axis] Deferred tax assets bad debt and credit loss deduction. Deferred Tax Assets Bad Debt And Credit Loss Deduction Bad debt and credit loss deduction Equity, Attributable to Parent [Abstract] Stockholders' Equity Entity Small Business Interest and Dividend Income, Operating [Abstract] Interest income: Regulated Operations [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Deposit Liabilities, Type [Table Text Block] Composition of Deposits Revolving loans converted to term loans Financing Receivable Revolving Loans Converted To Term Loans Financing Receivable Revolving Loans Converted To Term Loans Revolving loans converted to term loans Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit) Retained earnings Net decrease in retained earnings Common equity tier one capital ratio required to be well capitalized. Common Equity Tier One Capital Ratio Required To Be Well Capitalized Common equity Tier I capital ratio, To Be Well Capitalized under Prompt Corrective Action Provisions, Ratio Gain on sale of other investments Gain (Loss) on Sale of Other Investments Industry Sector [Domain] Nature of Operations [Text Block] Business Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Total Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Beginning Balance Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Ending Balance Debt Securities, Held-to-Maturity, Allowance for Credit Loss Debt Securities, Held-to-Maturity, Allowance for Credit Loss Entity Well-known Seasoned Issuer Offsetting [Abstract] Secured By Agricultural Land [Member] Secured By Agricultural Land [Member] Loans Secured by Agricultural Land [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Intrinsic value of options exercised Deferred Compensation Arrangement with Individual, Excluding Share-Based Payment and Postretirement Benefit [Table] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Share-Based Payment Arrangement [Text Block] Stock Based Compensation Plans Organization, Consolidation and Presentation of Financial Statements [Abstract] Reserve for Unfunded Loan Commitments Leases [Abstract] Derivative Asset, Fair Value, Amount Offset Against Collateral, Total Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Financial assets, Gross Amounts Not Offset in the Consolidated Balance Sheets, Net Amount Amendment Flag Interest Income, Securities, Operating, Taxable Taxable OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Net change in fair value recorded in accumulated OCI, Before-tax Product and Service [Domain] Product and Service [Domain] Major Property Class [Domain] Major Property Class [Domain] Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount US Federal Statutory Tax Rate Investment contractual cash flows guaranteed by government. Investment Contractual Cash Flows Guaranteed By Government Investment contractual cash flows guaranteed by Government, percentage Computer software expense. ComputerSoftwareExpense Computer software expense Reserve for undisbursed commitments. Reserve For Undisbursed Commitments Reserve for credit risk for undisbursed commitments Earnings Per Share, Policy [Policy Text Block] Earnings per Common Share Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Entity Address, Postal Zip Code Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash used in operating activities Substandard [Member] Substandard [Member] Allocation of reserves to troubled debt restructuring. Allocation Of Reserves To Troubled Debt Restructuring Allocation of allowance to troubled debt restructuring Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Basic Earnings per share - basic Common Stock [Member] Common Stock [Member] Subordinated Borrowing, Interest Rate Borrowing Rate The carrying amount of other real estate owned sold during the period. Other Real Estate And Foreclosed Assets Sales Dispositions Banking Regulation, Capital Conservation Buffer, Capital Conserved, Minimum Capital Conservation Buffer rate Business Combination, Recognized Asset Acquired, Inventory, Current FHLB stock Cybersecurity Risk Role of Management [Text Block] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted, Weighted Average Exercise Price Hedging Relationship [Domain] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Regulatory Capital Amounts and Ratios for Company and Bank Lessee, Operating Lease, Liability, to be Paid, Year Three 2028 Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation and amortization Dividend Income, Operating, Total Dividend Income, Operating Dividends from FHLB stock Schedule of Fair Value of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-sale [Line Items] Deferred tax assets purchased credit impaired loans. Deferred Tax Assets Purchased Credit Impaired Loans PCI loans Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity Total adjustments Income Tax Paid, by Individual Jurisdiction [Line Items] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Debt Instrument, Interest Rate, Effective Percentage DebtInstrumentInterestRateEffectivePercentage Portion at Fair Value Measurement [Member] [Default] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Entity Address, Address Line One Deferred Tax Liabilities, Gross Gross deferred tax liability Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Estimated Fair Value of Stock Options Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair value of instruments totaled Financial Instruments, Owned, at Fair Value Financial Instruments, Owned, at Fair Value, Total Earnings Per Share [Abstract] Income Taxes Income Tax, Policy [Policy Text Block] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Residential Real Estate [Member] SFR Mortgage [Member] SFR Mortgage [Member] Derivative Asset Interest rate swaps Financial assets, Net Amounts Presented in the Consolidated Balance Sheets Interest rate swaps, assets Net (increase) decrease in equity investments Increase Decrease In Equity Investment Increase Decrease In Equity Investment Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets Municipal lease finance receivables. Municipal Lease Finance Receivables [Member] Municipal Lease Finance Receivables [Member] Additional dividends without obtaining prior approval from bank regulators declared and paid. Additional Dividends Without Obtaining Prior Approval From Bank Regulators Declared And Paid Additional dividends without obtaining prior approval from bank regulators declared and paid Other Real Estate Owned Other real estate owned OREO Banking Regulation, Tier 1 Leverage Capital Ratio, Actual Tier 1 Capital (to Average-Assets), Actual, Ratio Other Liabilities [Member] Other Liabilities [Member] Statement of Financial Position Location, Balance [Axis] Balance Sheet Location [Axis] Investment Type [Axis] Investment Type [Axis] Deferred Tax Assets, State Taxes California franchise tax California franchise tax Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value Total, Held-to-maturity, Fair Value Increase (Decrease) in Other Deposits Net increase (decrease) in other deposits Fair Value Measurements, Nonrecurring [Table Text Block] Assets and Liabilities Measured at Fair Value on Non-Recurring Basis ROU assets Operating Lease, Right-of-Use Asset Fair Value, Available-for-sale Debt Securities, Available-for-Sale, Unrealized Loss Position Debt Securities, Available-for-sale, Unrealized Loss Position, Total Deferred Tax Assets, Gross Gross deferred tax asset Recapture of provision for loan and lease losses. Recapture of Provision For Loan and Lease Losses (Recapture of) provision for credit losses Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Payments to Acquire Debt Securities, Available-for-Sale Purchases of investment securities available-for-sale Net change After-tax Net change After-tax Other comprehensive income Other comprehensive income, net of tax Total Financing Receivable, Past Due Total Financing Receivable, Past Due Total financing receivable, past due Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-Sale, Debt Securitie Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-Sale, Debt Securitie Investment in FHLB stock, impairment losses Income Tax Assets Current [Abstract] Income Tax Assets Current [Abstract] Current: Land Land Document Type Equity Incentive Plan Two Thousand Eight [Member] Equity Incentive Plan Two Thousand Eight [Member] 2008 Equity Incentive Plan [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill and Intangible Assets Banking Regulation, Capital Conservation Buffer, Total Risk-Based Capital, Actual Capital Conservation Buffer Total Risk-Based Capital Ratio Income Taxes Paid, Net Income Taxes Paid, Net, Total Total Entity Central Index Key Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum Tier 1 Capital (to Average-Assets), Required To Be Well Capitalized, Amount Schedule of Cash Paid Income Tax Paid Text Block Schedule of Cash Paid Income Tax Paid Text Block Schedule of Cash Paid Income Tax Paid Time Deposit Maturities, after Year Five 2030 and thereafter Investments, Debt and Equity Securities [Abstract] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Furniture and equipment. Furniture And Equipment Furniture and equipment Maturities of Time Deposits [Abstract] Year of maturity: Interest-Bearing Deposits in Banks and Other Financial Institutions Interest-earning balances due from depository institutions Schedule Of Available For Sale Securities And Held To Maturity [Table Text Block] Schedule Of Available For Sale Securities And Held To Maturity [Table Text Block] Summary of Amortized Cost and Estimated Fair Value of Investment Securities Junior subordinated debenture held by CVB statutory trust III. Junior Subordinated Debenture Held By Cvb Statutory Trust Iii [Member] Junior Subordinated Debenture Held by CVB Statutory Trust III [Member] Deferred tax liabilities federal home loan bank stock. Deferred Tax Liabilities Federal Home Loan Bank Stock FHLB stock Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Subsequent Event Type [Domain] Non accruals recoveries charge offs and recoveries [Policy text block]. Non Accruals Recoveries Charge Offs And Recoveries [Policy Text Block] Nonaccrual, Past Due, Charge-Offs and Recoveries Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] Condensed Balance Sheet [Table Text Block] Condensed Balance Sheets Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities excluded from computation of earnings per common share Financial Guarantee [Member] Financial Guarantee [Member] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Percentage of Interest-Bearing Domestic Deposits to Deposits, Time Deposits Time deposits, percentage of total deposits Accounting Standards Update [Domain] Type of Adoption [Domain] Credit Related Impairment Loss On Investment Securities Held To Maturity Credit-related impairment loss on investment securities held-to-maturity. Credit-related impairment loss on investment securities held-to-maturity Liabilities [Abstract] Liabilities: Operating Lease, Right-of-Use Asset, Periodic Reduction Lease liabilities arising from obtaining right-of-use assets Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual Common equity Tier I capital ratio, Actual, Amount Financing Receivable, Credit Quality Indicator [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding, Weighted Average Remaining Contractual Term Debt Securities, Available-for-Sale, Amortized Cost Amortized cost Amortized Cost, Available-for-sale Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity Total Available-for-sale Securities, Debt Maturities, Available-for-sale, Fair Value Investment securities available-for-sale Investment securities available-for-sale, at fair value (with amortized cost of $3,755,297 at December 31, 2022, and $3,185,249 at December 31, 2021) Investment securities available-for-sale, at fair value (with amortized cost of $2,997,047 at December 31, 2024, and $3,398,942 at December 31, 2023) Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax Other comprehensive income (loss) amortization of unrealized gain (loss) on securities transferred from available for sale to held to maturity net of tax. Other Comprehensive Income Loss Amortization Of Unrealized Gain Loss On Securities Transferred From Available For Sale To Held To Maturity Net Of Tax Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax Changes in valuation adjustments associated with other real estate owned occurring during the period. Other Real Estate And Foreclosed Assets Valuation Adjustments Valuation adjustments Noninterest Income [Abstract] Noninterest income: Noninterest income: Unemployment [Member]. Unemployment [Member] Document Financial Statement Error Correction [Flag] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercise of stock options, shares Exercised, Number of Stock Options Outstanding Doubtful [Member] Doubtful & Loss [Member] Debt Disclosure [Abstract] Other comprehensive income (loss) amortization of unrealized gain (loss) on securities transferred from available for sale to held to maturity tax. Other Comprehensive Income Loss Amortization Of Unrealized Gain Loss On Securities Transferred From Available For Sale To Held To Maturity Tax Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, Tax effect Schedule of recorded investment in held-for-investment and held-for-sale, non-accrual loans and past due by class of loans. Schedule Of Recorded Investment Non Accrual Loans And Past Due By Class [Table Text Block] Schedule of Recorded Investment in, and Aging of, Past Due and Nonaccrual Loans, Including PCI Loans by Class of Loans Estimate of Fair Value Measurement [Member] Estimated Fair Value [Member] Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Assets Marketable Securities Total investment securities Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Less: Income tax benefit (expense) related to items of other comprehensive income Less: Income tax expense related to items of other comprehensive income Total fair value of instruments Derivative, Notional Amount notional value Increase (Decrease) in Time Deposits, Total Increase (Decrease) in Time Deposits Net increase in time deposits Current Fiscal Year End Date Schedule of Long-Term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Gains (Losses) on Sales of Other Real Estate Gain on sale of other investments Gain on sale of OREO Gain on Other real estate owned ("OREO"), net Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investment in subsidiaries Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Other assets Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Financial liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheets, Collateral Pledged CALIFORNIA Receivables [Abstract] Entity Address, State or Province Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Nonvested, Shares, Ending Balance Nonvested, Shares, Beginning Balance Available secured borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Holding Gain, Available-for-sale Common stock available for future issuance Common Stock, Capital Shares Reserved for Future Issuance Incremental Common Shares Attributable to Share-based Payment Arrangements, Total Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Dilutive effect of stock options Geographical [Axis] Geographical [Axis] Cash consideration Business Combination, Transaction Cost, Excluding Separately Recognized Transaction Fair Value Hedge Liabilities Fair Value Hedge Liabilities Maturities of advances BTFP Maturities of Subordinated Debt Additions due to acquisitions Addition of Goodwill due to Acquisitions Addition of Goodwill due to Acquisitions Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount State and Local Income Taxes, Net of Federal Income Tax Effect Professional Fees Professional services Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Debt Instrument, Unamortized Discount (Premium), Net, Total Debt Instrument, Unamortized Discount (Premium), Net Loan net of discount Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Percentage of non-interest-bearing domestic deposits to deposits demand. Percentage Of Non Interest Bearing Domestic Deposits To Deposits Demand Noninterest-bearing deposits, percentage of total deposits Weighted average fixed rate of interest Derivative, Average Fixed Interest Rate Subsequent Event [Member] Subsequent Event [Member] Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Number of loans modified as a TDR within the previous 12 months that subsequently defaulted Property, Plant and Equipment [Abstract] Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment Premises and equipment Interest Expense, Operating Total interest expense Interest Income (Expense), after Provision for Loan Loss Net interest income after (recapture of) provision for credit losses Percentage of increase decrease in macro economic factors. Percentage of Increase Decrease In Macro Economic Factors Operating Loss Carryforwards [Line Items] Summary of Activity Related to Total OREO Other Real Estate, Roll Forward [Table Text Block] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Vested or expected to vest, Aggregate Intrinsic Value Derivative Liability, Notional Amount Derivative Liability, Notional Amount Proceeds from Sale of Debt Securities, Available-for-Sale Proceeds from sales of available-for-sale securities Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual Common equity Tier I capital ratio, Actual, Ratio State and Local Jurisdiction [Member] State [Member] Available-for-Sale Securities [Member] Investment securities available-for-sale [Member] AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Member] Derivative Liability Financial liabilities, Net Amounts Presented in the Consolidated Balance Sheets Interest rate swaps, liabilities Financial liabilities, Net Amounts Presented in the Consolidated Balance Sheets Noncash Merger Related Costs Non-recurring merger related expenses Derivative Liability, Fair Value, Amount Not Offset Against Collateral, Total Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral Financial liabilities, Gross Amounts Recognized in the Consolidated Balance Sheets Major Property Class [Axis] Major Property Class [Axis] Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Percentage of Interest-Bearing Domestic Deposits to Deposits, Money Market Money market, percentage of total deposits Stock and cash transaction valued Business Combination, Consideration Transferred Total merger consideration Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Additions due to acquisitions Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Deferred provision Total Loans and Financing Receivables Loan And Leases Receivable Gross Carrying Amount Loan And Leases Receivable Gross Carrying Amount Total Minimum [Member] Minimum [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Granted, Weighted Average Fair Value Weighted average fair value of restricted stock Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Increase in BOLI Life Insurance, Corporate or Bank Owned, Change in Value Asset Derivatives Derivative Asset, Fair Value, Gross Asset, Total Derivative Asset, Subject to Master Netting Arrangement, before Offset 2020-2019 Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2024 Interest Expense, Other Other Investment checking deposits. Investment Checking Deposits Investment checking Unrealized loss on investment securities, net Deferred Tax Asset, Debt Securities, Trading, Unrealized Loss Summary of Recorded Investments or Past Due Loans At Amortized Cost Schedule of Recorded Investments for Past Due Loans at Amortized Cost [Table Text Block] Schedule of Recorded Investments for Past Due Loans at Amortized Cost [Table Text Block] Quarterly Financial Information [Text Block] Quarterly Financial Data Amortization of Intangible Assets, Total Amortization of Intangible Assets Amortization of intangible assets Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Nonrecurring [Member] Fair Value on Non-Recurring Basis [Member] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Estimated Amortization Expense: Entity Location Type Domain Entity Location Type [Domain] Gains losses on other real estate net. Gains Losses On Other Real Estate Net Gain on sale leaseback transactions Finite-Lived Intangible Assets [Member] Community Bank [Member] Community Bank [Member] Community Bank [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total Business Combination, Recognized Asset Acquired, Asset Total assets Deferred Tax Liabilities, Property, Plant and Equipment Depreciation Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Assets and Liabilities Measured at Fair Value on a Recurring Basis Secure public funds Secure Public Funds Secure Public Funds Time Deposit Maturities, Year Four 2029 Other Assets, Miscellaneous, Total Other Assets, Miscellaneous Other assets Accounting Standard Update 2014-09 [Member] Accounting Standard Update 2014-09 [Member] Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Accrued expense Sublease Income Sublease income Government agency/GSE Government agency/GSE [Member] Government agency/GSE [Member] Operating Loss Carryforwards Net operating los carryforwards Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of Components of Loans and Lease Finance Receivables, Excluding PCI Loans Interest Expense, Operating and Nonoperating [Abstract] Interest expense: OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax, Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Net change, Tax effect Net change, Tax effect Tax Credit Carryforward [Table] Income Tax Paid, by Individual Jurisdiction [Abstract] Commitments and Contingencies CommitmentsAndContingencies Lessee, Leases [Policy Text Block] Operating Leases Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Total Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Deferred compensation Loan Defaulted within Period Loan Defaulted within Period Loan Defaulted within Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Nonvested, Weighted Average Fair Value, Ending Balance Nonvested, Weighted Average Fair Value, Beginning Balance Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Shares issued and compensation expense, pursuant to stock-based compensation plan, net of stock surrendered and cancelled, shares Short-term borrowings Other Short-Term Borrowings Higher cost borrowings Interest Income From Available For Sale Securities Interest income from available for sale securities. Investment securities available-for-sale Present value of lease liabilities, Total Operating Lease, Liability Present value of lease liabilities Total loans, at amortized cost Total Loans and Leases Receivable, Gross Goodwill, Measurement Period Adjustment Purchase accounting adjustments Auditor Firm ID ASR Plan [Member] ASR Plan [Member] Forecast [Member] Forecast [Member] Short-term Debt, Total Short-Term Debt Short term borrowings Schedule of Goodwill [Table Text Block] Changes in Carrying Amount of Goodwill Depreciation, Amortization and Accretion, Net, Total Depreciation, Amortization and Accretion, Net Depreciation and amortization, net Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Gross Contractual Amount Gross contractual amount receivable, as of acquisition date Credit Loss Status [Axis] Credit Loss Status [Axis] Notional Pay Fixed Interest Notional Pay Fixed Interest Notional Pay Fixed Interest Schedule of Other Information related to the Company's Tax Credit Investments [Table Text Block] Schedule of Other Information related to the Company's Tax Credit Investments [Table Text Block] Schedule of Other Information related to the Company's Tax Credit Investments Single Family Residential Loan [Member] Single Family Residential Loan [Member] Single-family Residential Loans [Member] Debt Securities, Available-for-Sale, Restricted Investment securities at carrying value Investment securities pledged as collateral Represents the minimum threshold for loans that are subject to an annual credit review process, where all aspects of the loan, including the borrower and guarantor(s) undergo review. This review process may result in changes to the internal credit risk rating of the loan. Minimum Loan Amount for Annual Credit Review Process Minimum loan amount for credit review process Summary of Amortized Cost of Loans Activity Schedule of Amortized Cost of Loans Activity [Table Text Block] Schedule of Amortized Cost of Loans Activity [Table Text Block] Lessee, Lease, Description [Table] Interest and Dividend Income, Operating Total interest income Text Block [Abstract] Held To Maturity Securities Continuous Unrealized Losses Position Twelve Months Or Longer Fair Value Held To Maturity Securities Continuous Unrealized Losses Position Twelve Months Or Longer Fair Value Fair Value, 12 Months or Longer, Held-to-maturity Financing Receivable, Originated, More than Five Years before Current Fiscal Year Prior SBA [Member] SBA Loans [Member] Commercial Trade Financing [Member]. Commercial Trade Financing [Member] Impairment Effects on Earnings Per Share [Table] Interest Income (Expense), Operating Net interest income Net interest income before (recapture of) provision for credit losses Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net earnings Notes receivable gross Loans Not Past Due Financing Receivable, before Allowance for Credit Loss Total Tax Credit Carryforward [Line Items] Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Cash and cash equivalents Accretion of Discount for Acquired Loans, Net Accretion of Discount for Acquired Loans, Net Accretion of discount for acquired loans, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Other operating activities, net Amortized Cost, Held-to-maturity Investment securities held-to-maturity (with fair value of $2,155,587 at December 31, 2022, and $1,921,693 at December 31, 2021) Investment securities held-to-maturity Investment securities held-to-maturity (fair value of $1,925,492 at December 31, 2025, and $1,954,345 at December 31, 2024) Financing Receivable, 90 Days or More Past Due, Still Accruing Loans Past Due Over 89 Days Still Accruing Deposits, Money Market Deposits Money market Consumer, Other [Member] Consumer and other loans [Member] Real Estate, Policy [Policy Text Block] Other Real Estate Owned Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding Weighted average shares outstanding Scenario [Axis] Scenario [Axis] Gross Unrealized Holding Losses, Held-to-maturity Held To Maturity Securities Continuous Unrealized Losses Position Accumulated Loss Held To Maturity Securities Continuous Unrealized Losses Position Accumulated Loss Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Exercisable, Aggregate Intrinsic Value Contingencies And Commitments [Table] Contingencies And Commitments [Table] Contingencies And Commitments [Table] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Reconciliation of Statutory Income Tax Rate to Consolidated Effective Income Tax Rate Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Long-Lived Tangible Asset [Domain] Property, Plant and Equipment, Type [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Granted, Number of Stock Options Outstanding Stock options granted under Black-Scholes options pricing model Marketing Expense Marketing and promotion Accrued interest payable Interest Payable Business combination recognized identifiable assets acquired and liabilities assumed premium paid. Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Premium Paid Core deposit intangible assets Core deposit intangible Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Subsequent Events [Text Block] Subsequent Events Deferred Compensation Liability, Current and Noncurrent, Total Deferred Compensation Liability, Current and Noncurrent Deferred compensation Deferred compensation liability Loans Receivable, Fair Value Disclosure Loans receivable at fair value Effective Income Tax Rate Reconciliation, Tax Credit, Percent, Total Effective Income Tax Rate Reconciliation, Tax Credit, Percent Solar tax credits, rate Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual Tier 1 Capital (to Risk-Weighted Assets), Actual, Ratio Secured Public Fund [Member] Secured Public Fund [Member] Secured Public Fund [Member] Schedule of income tax assets liability. Schedule Of Income Tax Assets Liability [Table Text Block] Schedule of Income Tax Asset Equity in undistributed earnings of subsidiary Earnings of subsidiaries. Earnings Of Subsidiaries Earnings of subsidiaries Gross Unrealized Holding Losses, Held-to-maturity Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss Securities Sold under Agreements to Repurchase, Total Securities Sold under Agreements to Repurchase Customer repurchase agreements Funds borrowed under repurchase agreement Deferred Tax Liabilities, Financing Arrangements California franchise tax Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Tax-exempt income, rate Equity, Attributable to Parent Ending balance Beginning balance Stockholders' equity Total stockholders' equity Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Diluted Earnings per share - diluted The tabular disclosure of lease cost and supplemental information related to leases. Lease Cost And Supplemental Information Related To Leases [Table Text Block] Components of lease costs and supplemental information related to leases Financing Receivable, Held-for-Sale Loans held-for-sale Statement of Stockholders' Equity [Abstract] Time Deposit Maturities [Table Text Block] Scheduled Maturities of Time Certificates of Deposit Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss Gross Unrealized Holding Loss, Held-to-maturity Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Investment Transferred from Available-for-Sale to Equity Method, after Tax Net realized loss on investment securities reclassified into earnings Tax effect Debt, Long-term and Short-term, Combined Amount, Total Debt, Long-Term and Short-Term, Combined Amount Borrowings Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) Allowance For Credit Losses Increase Decrease Use of Estimates, Policy [Policy Text Block] Use of Estimates Interest-Bearing Deposit Liabilities [Abstract] Interest-bearing deposits: Net increase in customer repurchase agreements Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Net increase (decrease) in customer repurchase agreements Additions due to acquisitions Additions due to acquisitions Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Financing Receivable, Allowance for Credit Loss, Ending Balance Financing Receivable, Allowance for Credit Loss, Beginning Balance Financing Receivable, Allowance for Credit Loss Allowance for credit losses Entity Address, Address Line Two Entity Address, Address Line Two Condensed Income Statement [Table Text Block] Condensed Statements of Earnings Fair Value Disclosures [Text Block] Fair Value Information Business Combination, Consideration Transferred [Abstract] Merger Consideration Noninterest Income, Other, Total Noninterest Income, Other Other Other Purchases of investment securities held-to-maturity Payments to Acquire Held-to-Maturity Securities Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years Due after five years through ten years, Amortized Cost, Held-to-maturity Operating Lease, Term of Contract 1 Operating Lease, Term of Contract 1 Operating Lease, Term of Property 2 Gross Charge Offs Revolving Loans Amortized Term Loans Gross Charge Offs Revolving Loans Amortized Term Loans Gross Charge Offs Revolving Loans Amortized Term Loans UNITED STATES United States [Member] Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Turbine Advances Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Advances FHLB advances Investment securities for other purposes Other purposes Investment securities for other purposes Deferred Tax Liabilities, Unrealized Gains on Trading Securities Unrealized gain on investment securities, net Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum Tier 1 Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Amount Debt Instrument, Name [Domain] Business Combination, Effective Date of Acquisition Acquisition date Derivative Instruments and Hedging Activities Disclosure [Abstract] Sale Leaseback Transactions, Aggregate Sale Price Sale Leaseback Transactions, Aggregate Sale Price Sale Leaseback Transaction, Sale price Offsetting Assets Liabilities [Table] Offsetting Assets Liabilities [Table] Offsetting Assets Liabilities [Table] Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Amount Condensed Financial Information of Parent Company Only Disclosure [Text Block] Condensed Financial Information of Parent Company Plan Name [Domain] Plan Name [Domain] Macro Economic Factors [Axis]. Macro Economic Factors [Axis] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Receivable [Policy Text Block] Loans and Lease Finance Receivables Entity [Domain] Entity [Domain] Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Due after ten years, Fair Value, Available-for-sale Credit Facility [Axis] Credit Facility [Axis] Deferred Compensation Arrangement with Individual, Contributions by Employer Deferred compensation plan, discretionary payments Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Loan Restructuring Modification [Axis] Period which charge offs unsecured consumer loan are recorded. Period Which Charge Offs Unsecured Consumer Loan Are Recorded Number of days on which charge-offs unsecured consumer loans are recorded Current State and Local Tax Expense (Benefit) State Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Business Combination, Recognized Liability Assumed, Long-Term Debt, Noncurrent Other borrowings Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Cash Proceeds From Sale Of Leaseback Transactions Cash proceeds from sale of leaseback transactions. Cash proceeds Proceeds from redemption of BOLI policies Proceeds from Redemption of BOLI Policies Proceeds from Redemption of BOLI Policies Business Combination, Recognized Liability Assumed, Liability [Abstract] Liabilities assumed Proceeds from Sale of Other Real Estate Proceeds from sales of OREO Macro Economic Factors [Domain]. Macro Economic Factors [Domain] Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other, net 2021-2020 Financing Receivable, Year One, Originated, Current Fiscal Year 2025 Foreign Tax Jurisdiction [Member] California Member Collateral Held [Axis] Cash and Due from Banks, Total Cash and Due from Banks Cash and due from banks Property, Plant and Equipment, Policy [Policy Text Block] Premises and Equipment Regulatory Capital Requirements under Banking Regulations [Text Block] Regulatory Matters Net realized loss on investment securities reclassified into earnings After-tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Investment Income [Table] Investment Income [Table] Entity Address, City or Town Deferred tax assets operating lease liabilities. Deferred Tax Assets Operating Lease Liabilities Lease liability Stock Repurchased During Period, Shares Repurchase of common stock, shares Consumer Mortgage [Member]. Consumer Mortgage [Member] SFR mortgage [Member] SFR Mortgage Loans [Member] Outstanding borrowings Outstanding Borrowings Outstanding Borrowings Operating Loss Carryforwards, Valuation Allowance Operating Loss Carryforwards, Valuation Allowance Consumer And Other Loans [Member] Consumer And Other Loans [Member] Consumer and Other Loans [Member] Security Exchange Name Number of Interest Rate Derivatives Held Number of interest-rate swap agreements Credit Facility [Domain] Credit Facility [Domain] Line Of Credit Facility Amount Line Of Credit Facility Amount Unsecured Borrowed Fund Interest Expense, Deposits, Total Interest Expense, Deposits Deposits Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Other, net, rate Premises and equipment, gross Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross Noninterest Expense [Abstract] Noninterest expense: Current provision: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Weighted average fixed rate Debt, Weighted Average Interest Rate Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum Common equity Tier I capital ratio, To Be Well Capitalized under Prompt Corrective Action Provisions, Amount Schedule Of Description Of Company [Line Items] Schedule Of Description Of Company [Line Items] Schedule Of Description Of Company [Line Items] Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Earnings before income taxes Recorded investment in collateral dependent loans on business assets. Recorded Investment In Collateral Dependent Loans On Business Assets Business Assets Common Stock Including Additional Paid in Capital [Member] Common Stock [Member] Deposits, Savings Deposits Savings Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested or expected to vest, Number of Stock Options Outstanding Weighted average interest rate. Weighted Average Interest Rate Weighted average interest rates Assets and Liabilities, Lessee [Abstract] Lease Assets and Liabilities Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Tax Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) Tax effect Compensation Related Costs [Abstract] Pledging Purpose [Domain] Deposits [Abstract] Deposits: Gross Unrealized Holding Loss, Less than 12 Months, Held-to-maturity Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Accumulated Loss Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Accumulated Loss Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) Before - Tax Financial Asset, Not Past Due [Member] Available for sale securities portfolio, percentage. Available For Sale Securities Portfolio Percentage Total Percent, Available-for-sale Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Pledged Assets Not Separately Reported On Statement Of Financial Position [LineItems]. Pledged Assets Not Separately Reported On Statement Of Financial Position [Line Items] Financing Receivable, Modifications [Line Items] Measurement Basis [Axis] Measurement Basis [Axis] Statistical Measurement [Domain] Range [Domain] Pay check protection program[member]. Pay check Protection Program [Member] SBA - PPP [Member] SBA - Paycheck Protection Program (PPP) [Member] Share-Based Payment Arrangement, Expense Total expenses on stock option Document Period End Date Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other comprehensive income (loss), before tax Other comprehensive (loss) income, before tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Net change, Before-tax Fair Value, Less Than 12 Months, Held-to-maturity HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValues HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValues Collateralized loan obligations Collateralized Loan Obligations [Member] ICFR Auditor Attestation Flag Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Exercisable, Number of Stock Options Outstanding Number of common shares, options exercisable Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. Schedule Balance Sheet Offsetting [Table Text Block] Schedule of Balance Sheet Offsetting Commitments to extend credit. Commitments To Extend Credit Commitments to extend credit Gain (Loss) on Disposition of Property Plant Equipment, Total Gain (Loss) on Disposition of Property Plant Equipment Gain on sale of property plant equipment Credit Loss Status [Domain] Credit Loss Status [Domain] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Statement of Financial Position [Abstract] Collateralized Debt Obligations [Member] Collateralized loan obligations Business Combination, Recognized Asset Acquired, Asset [Abstract] Assets Acquired Financing Receivable, Year Five, Originated, Five Years before Current Fiscal Year Financing Receivable, Year Five, Originated, Five Years before Current Fiscal Year Prior Equity Incentive Plan Two Thousand Eighteen [Member] Equity Incentive Plan Two Thousand Eighteen [Member] 2018 Equity Incentive Plan Income tax asset net Income Tax Asset Net Income tax asset (liability), Total Income tax asset Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income: Statement of cash flows. Statement Of Cash Flows [Policy Text Block] Statement of Cash Flows Class of Stock [Axis] Loans receivable construction. Loans Receivable Construction Construction Compensation and Employee Benefit Plans [Text Block] Employee Benefit Plans Financing Receivable Accrued Interest Originated More than Five Years before Current Fiscal Year Writeoff Financing Receivable Accrued Interest Originated More than Five Years before Current Fiscal Year Writeoff Financing Receivable Accrued Interest Originated More than Five Years before Current Fiscal Year Writeoff Debt Instrument, Unused Borrowing Capacity, Amount Debt Instrument, Unused Borrowing Capacity, Amount Debt Instrument, Unused Borrowing Capacity, Amount Current Income Tax Expense (Benefit) Current provision, total Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), after Tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), after Tax Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) After Tax Selected Quarterly Financial Information [Abstract] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Not Designated as Hedging Instrument [Member] Derivatives not designated as hedging instruments Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Enactment of new tax laws, rate Financial Asset, Aging [Domain] Financing Receivables, Period Past Due [Domain] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Liabilities Liabilities Total liabilities CVB Statutory Trust Three [Member] CVB Statutory Trust Three [Member] CVB Statutory Trust III [Member] Financial Instruments [Domain] Financial Instruments [Domain] Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Financial liabilities, Gross Amounts Offset in the Consolidated Balance Sheets Lease Term And Discount Rate Abstract Lease Term And Discount Rate [Abstract] Lease Term and Discount Rate Derivative Liability Statement of Financial Position Extensible Enumeration not Disclosed Flag Derivative Liability Statement of Financial Position Extensible Enumeration not Disclosed Flag Collateral Pledged [Member] Time deposits 250000 or more. Time Deposits 250000 Or More Balance of accounts with more than $2500,000 balance Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Due in one year or less, Fair Value, Held-to-maturity Common equity tier one capital ratio required for capital adequacy. Common Equity Tier One Capital Ratio Required for Capital Adequacy Common equity Tier I capital ratio, For Capital Adequacy Purposes, Ratio Loans And Leases Receivable Net Reported Amount 1 Loans And Leases Receivable Net Reported Amount 1 Total loans, net of allowance for credit losses Derivative Liability, Statement of Financial Position [Extensible Enumeration] Lessee, Operating Lease, Liability, to be Paid, Year Two 2027 Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Securities matured and not settled Securities matured and not settled Securities matured and not settled Financing Receivable Credit Quality Indicators [Table Text Block] Summary of Loan, Excluding PCI Loans by Internal Risk Ratings Effective Income Tax Rate Reconciliation, Nondeductible Expense, Life Insurance, Percent Impact BOLI surrender and MEC penalty, rate Restricted Stock [Member] Restricted Stock [Member] Debt securities weighted average remaining contractual maturity term. Debt Securities Weighted Average Remaining Contractual Maturity Term Debt securities weighted average remaining contractual maturity term Finite-Lived Intangible Assets, Gross, Total Finite-Lived Intangible Assets, Gross Balance of intangible assets, Gross CDI Carrying Amount, End of period Balance of intangible assets, Gross CDI Carrying Amount, Beginning of period Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale Gross Unrealized Holding Loss, Less than 12 Months, Available-for-sale Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Nonqualified excess plan. Nonqualified Excess Plan [Member] Executive Non-qualified Excess Plan [Member] Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average shares outstanding Securities Act File Number Tier One Risk Based Capital Required For Capital Adequacy With Buffer To Risk Weighted Assets Tier One Risk Based Capital Required For Capital Adequacy With Buffer To Risk Weighted Assets Tier 1 Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Ratio Minimum Tier 1 risk based capital ratio Payments of Ordinary Dividends, Common Stock Cash dividends on common stock Net change in fair value recorded in accumulated OCI, After-tax OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Net change in fair value recorded in accumulated OCI, After-tax Other Assets Other assets Total Other assets, net Schedule of Effect of Derivative Instruments on Consolidated Statement of Earnings Derivative Instruments, Gain (Loss) [Table Text Block] Basis of Accounting [Text Block] Basis of Presentation Cover [Abstract] Schedule of held for investment and held for sale loans individually evaluated for impairment by class of loans. Schedule Of Held For Investment And Held For Sale Loans Individually Evaluated For Impairment By Class Of Loans [Table Text Block] Schedule of Held-for-Investment Loans, Individually Evaluated for Impairment by Class of Loans Fiduciary and Trust [Member] Trust and Investment Services [Member] Trust and Investment Services [Member] Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited, Shares Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Ratio Minimum total risk based capital ratio Securities issued by government or government sponsored agencies and enterprises percentage. Securities Issued By Government Or Government Sponsored Agencies And Enterprises Percentage Securities issued by U.S. government percentage Financial Asset, Aging [Axis] Financing Receivables, Period Past Due [Axis] Investments [Domain] Investments [Domain] Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net, Total Performance-Based Restricted Stock Units [Member] Performance-Based Restricted Stock Units [Member] PRSU Tax credits and other benefits recognized Income Tax Credits and Adjustments Scenario [Domain] Scenario [Domain] Nonaccrual financing receivables that are current. Financing Receivable Recorded Investment Current Nonaccrual Nonaccruing loans, current Number of Operating Segments Number of operating business segments Business combination recognized identifiable assets acquired and liabilities assumed bank owned life insurance. Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Bank Owned Life Insurance BOLI Construction speculative. Construction Speculative [Member] Construction Speculative [Member] Dairy and livestock loans. Dairy And Livestock Loans [Member] Dairy & Livestock Loans [Member] Federal Home Loan Bank Advances May Two Thousand Twenty Six [Member] Federal Home Loan Bank Advances May Two Thousand Twenty Six [Member] FederalHomeLoanBankAdvancesMayTwoThousandTwentySixMember Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Financial assets, Gross Amounts Offset in the Consolidated Balance Sheets Net earnings allocated to restricted stock. Net Earnings Allocated To Restricted Stock Less: Net earnings allocated to restricted stock Collateralized Mortgage-Backed Securities [Member] Mortgage-backed Securities [Member] Mortgage-backed securities Stock Issued During Period, Shares, Acquisitions Issuance of common stock for acquisition of Suncrest Bank, Shares Revenue from Contract with Customer, Including Assessed Tax Revenue from contract with customer Revenue from contract with customer, including assessed tax Employer contribution in profit sharing plan. Employer Contribution In Profit Sharing Plan Employer contribution in profit-sharing plan Forfeited or expired, Number of Stock Options Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Unused Borrowing Capacity [Member] Unused lines of Credit [Member] Subsequent Event [Table] Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Net income Agribusiness. Agribusiness [Member] Agribusiness Loans [Member] Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Proceeds from repayment and maturity of investment securities held-to-maturity Investment Income, Dividend Dividends from the Bank GDP [Member]. GDP [Member] Deferred Tax Assets, Other Other, net Short-Term Debt, Type [Domain] Short-term Debt, Type [Domain] Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net, Ending Balance Finite-Lived Intangible Assets, Net, Beginning Balance Intangibles Total Asset Acquisition, Consideration Transferred, Other Assets Other assets acquisition Acquired loan discounts Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from acquired loan discounts Deferred Tax Assets Acquired Loan Discounts Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Ratio Well capitalized risk based capital ratio Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Enactment of new tax laws Number of OREO Properties Number of Real Estate Properties Purchased loans. Purchased Loans [Policy Text Block] Purchased Loans Qualified Affordable Housing Partnerships and Tax Credit Partnerships Policy Text Block Qualified Affordable Housing Partnerships and Tax Credit Partnerships Policy Text Block Qualified Affordable Housing Partnerships and Tax Credit Partnerships Loans Excluding Purchased Credit Impaired Loans [Member] Loans Excluding Purchased Credit Impaired Loans [Member] Loans, Excluding PCI Loans [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested or expected to vest, Weighted Average Exercise Price Property, Plant and Equipment, Useful Life Estimated useful life of asset Short-Term Debt, Type [Axis] Short-term Debt, Type [Axis] Schedule of Investments [Table] Schedule of Investments [Table] New Accounting Pronouncements, Policy [Policy Text Block] Adoption of New Accounting Standard Future lease payments required for leases that have initial or remaining non-cancelable lease terms Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Maximum Contribute Capital Maximum contribute capital Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Vesting period Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Business Combination, Recognized Liability Assumed, Liability Total liabilities assumed Allowance For Loans And Lease Losses Write Offs Allowance For Loans And Lease Losses Write Offs Charge-offs Charge-offs Construction Loans [Member] Construction [Member] (Recapture of) provision for credit losses Provision for Loan and Lease Losses, Total Provision for loan losses Provision for (recapture of) credit losses Credit Card [Member] Bankcard Services [Member] Reported Value Measurement [Member] Carrying Value [Member] Held-to-Maturity Securities [Member] Investment securities held-to-maturity [Member] Lessee, Operating Lease, Term of Contract Operating Lease, Term of Property 1 Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Operating Lease, Liability, Current Allowance for write off Allowance for Loan and Lease Losses, Writeoff, Net Cybersecurity Risk Management Processes Integrated [Flag] Operating Lease Right Of Use Assets, Current Operating Lease Right Of Use Assets, Current Operating Lease Right Of Use Assets, Current Document Transition Report Deferred Tax Assets, Net Net deferred tax asset Secured By Dairy And Live Stock Land [Member] Secured By Dairy And Live Stock Land [Member] Loans Secured by Dairy & Livestock Land [Member] Commercial Real Estate [Member] Real Estate Loan [Member] Commercial Real Estate Loans [Member] Debt Securities, Held-to-maturity, Fair Value, Total Debt Securities, Held-to-Maturity, Fair Value Fair Value, Held-to-maturity Federal Home Loan Bank Advances May Two Thousand Twenty Seven [Member] Federal Home Loan Bank Advances May Two Thousand Twenty Seven [Member] FederalHomeLoanBankAdvancesMayTwoThousandTwentySevenMember Receivable [Domain] Receivable [Domain] Lessee, Operating Leases [Text Block] Leases Payments for Repurchase of Common Stock Repurchase of common stock Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Income Tax Expense Statement of Cash Flows [Abstract] Other Loans Payable Long Term Other Loans Payable, Long-Term, Noncurrent Current Federal Tax Expense (Benefit) Federal Share-Based Payment Arrangement, Option, Activity [Table Text Block] Option Activity under Company's Stock Option Plans Interest Rate Swap [Member] Interest rate swaps Accounts and Financing Receivables [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Allowance for credit losses for securities in unrealized loss position Allowance for credit losses for securities in unrealized loss position. Allowance for credit losses for securities in unrealized loss position Earnings Per Share [Text Block] Earnings Per Share Reconciliation Shares, Issued Ending balance, shares Beginning balance, shares Accounting Standards Update201409 Not Adopted Member Accounting Standards Update 201409 Not Adopted [Member] Accounting Standards Update 2014-09 Not Adopted [Member] Percentage of interest and non-interest bearing domestic deposits. Percentage Of Interest And Non Interest Bearing Domestic Deposits Percentage of deposit, total Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Summary of Status of Company's Non-Vested Restricted Shares Computer Equipment [Member] Computer Equipment [Member] Cybersecurity Risk Management Processes Integrated [Text Block] Net earnings Net earnings Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Outstanding, Aggregate Intrinsic Value Sale Leaseback Transaction, Net Book Value Sale Leaseback Transaction, Net Book Value Sale Leaseback Transaction, Net Book Value, Total Sale Leaseback Transaction, Sale price Payments to Suppliers and Employees, Total Payments to Suppliers and Employees Net cash paid to vendors, employees and others Operating lease expense Operating Lease, Cost Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Period over which borrower has to demonstrate repayment performance in compliance with restructured terms to take loan out of nonaccrual status. Period Over Which Borrower Has To Demonstrate Repayment Performance In Compliance With Restructured Terms To Take Loan Out Of Nonaccrual Status Period over which borrower has to demonstrate repayment performance in compliance with restructured terms to take loan out of nonaccrual status Provision and Allowance for Credit Losses [Policy Text Block] Provision and Allowance for Credit Losses [Policy Text Block] Provision and Allowance for Credit Losses Net change in Fair Value for available-for-sale-securities, Cumulative-effect adjustment for unrealized gains on securities transferred from available-for-sale to held-to-maturity, Net of change in the Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity. Other Comprehensive Income Unrealized Holding Gain Loss On Securities Transferred From Available For Sale To Held To Maturity Before Tax Unrealized gain on securities and derivatives during the period, before tax Provision for (Recapture of) Credit Losses Provision for (Recapture of) Credit Losses Provision For Loans And Lease Losses Provision For Loans And Lease Losses Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Short Term Advances Short-Term Bank Loans and Notes Payable Operating Lease, Payments Operating cash outflows from operating leases, net Provision for Loan, Lease, and Other Losses, Total Provision for Loan, Lease, and Other Losses Provision for credit losses Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Assets Assets [Abstract] Derivative assets liabilities net amount offset in balance sheet. Derivative Assets Liabilities Net Amount Offset In Balance Sheet Derivative assets and liabilities offset in balance sheet Federal Home Loan Bank Stock Investment in FHLB, FRB, and other stock Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate The entire disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. Balance Sheet Offsetting Assets And Liabilities [Text Block] Balance Sheet Offsetting Document Fiscal Year Focus Share based compensation arrangement by shares based payment award number of shares authorized. Share Based Compensation Arrangement By Shares Based Payment Award Number Of Shares Authorized Authorized issuance of shares of Company common stock Financing Receivable, Modified [Table Text Block] Summary of Loans Modified as Troubled Debt Restructurings Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of Components of Other Comprehensive Income Other Assets [Member] Other Assets [Member] Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash Flows from Investing Activities Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Options exercisable upper price range Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total Interest Paid, Including Capitalized Interest, Operating and Investing Activities Interest paid Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Fair value of options vested Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum Tier 1 Capital (to Average-Assets), Required To Be Well Capitalized, Ratio Well capitalized leverage ratio Weighted Average Number of Shares, Restricted Stock Number of restricted shares outstanding Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investment Securities Maturity Date Derivative, Contract End Date Deferred Federal Income Tax Expense (Benefit) Federal Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Shares issued and compensation expense, pursuant to stock-based compensation plan, net of stock surrendered and cancelled Secured By Farm Land [Member] Secured By Farm Land [Member] Loans Secured by Farmland [Member] Provision for (recapture of) unfunded loan commitments Provision For Unfunded Loan Commitments Provision For Unfunded Loan Commitments Subsidiary or Equity Method Investee, Sale of Stock [Table] Finite-Lived Intangible Asset, Expected Amortization, Year One 2026 Fair value hedging transactions Fair Value Hedge Assets Financial Asset Acquired with Credit Deterioration [Member] PCI Loans [Member] Components of Deferred Tax Assets [Abstract] Deferred tax assets: Deferred: Revision of Prior Period [Domain] Revision of Prior Period [Domain] Liabilities Assumed Fair value of liabilities assumed Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Percent Proportional Amortization, rate Schedule of Unrealized Loss on Investments [Table Text Block] Summary Of Unrealized Loss On Investments Other Liabilities, Total Other Liabilities Other liabilities Schedule of Other Assets [Table Text Block] Summary of Other Assets Useful life of long lived, physical leasehold improvement assets used in the normal conduct of business and not intended for resale. Property Plant And Equipment Useful Life Lease Hold Improvements Estimated economic lives of leasehold improvements Proceeds from Stock Options Exercised Cash received from stock option exercises Proceeds from exercise of stock options Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Other Debt Obligations [Member] Other Securities Prepaid Expense Prepaid expenses Stock Issued During Period, Value, Acquisitions Issuance of common stock for acquisition of Suncrest Bank Effective Income Tax Rate Reconciliation, Tax Credit, Amount, Total Effective Income Tax Rate Reconciliation, Tax Credit, Amount Solar tax credits Lessee, Operating Lease, Liability, to be Paid, Year One 2026 Provision for (recapture of) credit loss Provision for (recapture of) credit loss (Recapture of) provision for credit losses Interest Income, Debt Securities, Held-to-Maturity Investment securities held-to-maturity Bank operated wealth management offices, number. Bank Operated Wealth Management Offices Number Bank operated trust office locations, number Net Income (Loss) Available to Common Stockholders, Basic Net earnings allocated to common shareholders Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) Total fair value of identifiable net assets, at fair value Recorded investment in collateral dependent loans on real estate. Recorded Investment In Collateral Dependent Loans On Real Estate Real Estate Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Accumulated Loss Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Accumulated Loss Gross Unrealized Holding Losses, 12 Months or Longer, Held-to-maturity Business Acquisition, Pro Forma Information Business Combination, Pro Forma Information [Table Text Block] Income (Loss) from Subsidiaries, Net of Tax, Total Income (Loss) from Subsidiaries, Net of Tax Equity in undistributed earnings of subsidiaries Debt Instrument [Axis] Derivative Instrument [Axis] Derivative Instrument [Axis] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Dividends received from the Bank. Dividends Received From Bank Dividends received from the Bank Interest-earning balances due from Federal Reserve. Interest Earning Balances Due from Federal Reserve Interest-earning balances due from Federal Reserve Share-Based Payment Arrangement [Abstract] Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized compensation cost related to nonvested options granted Deposit Liabilities Disclosures [Text Block] Deposits Assets, Fair Value Disclosure Total assets Total assets Intangibles - acquistions Deferred Tax Liabilities, Intangible Assets Derivatives, Policy [Policy Text Block] Derivative Financial Instruments Adjustment of transition allowance for credit loses for loans. Adjustment Of Transition Allowance For Credit Loses For Loans Transition adjustment, allowance for credit loses for loans Banking Regulation, Regulatory Capital Requirement, Compliance [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Proceeds from (Repayments of) Other Debt, Total Proceeds from (Repayments of) Other Debt Net (decrease) increase in other borrowings Other Real Estate Owned [Text Block] Other Real Estate Owned [Text Block] Other Real Estate Owned Net cash (used in) provided by investing activities Net cash provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Pass [Member] Pass [Member] Unallocated Portfolio Layer Fair Value [Member] Unallocated portfolio layer fair value Unallocated portfolio layer fair value Title of 12(b) Security Contractual Interest Rate Reduction [Member] Term Extension and Interest Rate Reduction Member Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Financial Instruments Tax credit amortization expense included in provision for income taxes Tax credit Amortization Expense included in Provision For Income Taxes Tax credit Amortization Expense included in Provision For Income Taxes Income Tax Paid, by Individual Jurisdiction [Table] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Fair Value Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Due after one year through five years, Amortized Cost, Available-for-sale Nonaccrual with No Allowance for Credit Losses Financing Receivable Recorded Investment Non Accrual With No Allowance For Credit Losses. Financing Receivable Recorded Investment Non accrual With No Allowance For Credit Losses Nonaccrual with No Allowance for Credit Losses Investment securities. Investment Securities [Member] Investment Securities-AFS Business Acquisitions Pro Forma Information Line Items Business Acquisitions ProForma Information [Line Items] Effective Income Tax Rate Reconciliation, Nondeductible Expense, Life Insurance, Amount Impact BOLI surrender and MEC penalty Income Tax Disclosure [Text Block] Income Taxes Small Business Administration Loans - PPP [Member] Small Business Administration Loans - PPP [Member] SmallBusinessAdministrationLoansPpp(Member) Financing Receivable Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff Financing Receivable Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff Financing Receivable Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Other than Temporary Impairment Loss, Investments, Portion in Other Comprehensive Loss, before Tax, Attributable to Parent, Held-to-maturity Securities, Total Other than Temporary Impairment Loss, Investments, Portion in Other Comprehensive Loss, before Tax, Attributable to Parent, Held-to-Maturity Securities Credit-related impairment loss on investment securities held-to-maturity Legal Entity [Axis] Legal Entity [Axis] Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Due after one year through five years, Fair Value, Available-for-sale Property, Plant and Equipment [Table Text Block] Schedule of Premises and Equipment Letters of Credit Outstanding, Amount Obligations under letters of credit Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding, Weighted Average Exercise Price, Ending Balance Outstanding, Weighted Average Exercise Price, Beginning Balance Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Due after one year through five years, Fair Value, Held-to-maturity Time Deposits Time deposits Total Time Deposit Maturities, Year Three 2028 Income Tax Disclosure [Abstract] Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum Tier 1 Capital (to Average-Assets), For Capital Adequacy Purposes, Ratio Minimum leverage ratio for Highest rated institutions Fair Value, Recurring and Nonrecurring [Table] Business Combination [Text Block] Business Combinations Unrecognized Tax Benefits, Ending Balance Unrecognized Tax Benefits, Beginning Balance Unrecognized Tax Benefits Amount of unrecognized tax benefits Banking Regulation, Total Risk-Based Capital Ratio, Actual Total Capital (to Risk-Weighted Assets), Actual, Ratio Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Due after five years through ten years, Fair Value, Held-to-maturity Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Statement of Income Location, Balance [Axis] Income Statement Location [Axis] Financing Receivable, Unamortized Purchase Premium (Discount) Loans credit discount Trading Symbol Property, Plant and Equipment Disclosure [Text Block] Premises and Equipment Federal and california tax purposes Federal And California Income Tax Basis Federal And California Income Tax Basis Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Asset Held-for-Sale [Member] Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Due in one year or less, Amortized Cost, Available-for-sale Condensed Financial Statements [Table] Condensed Financial Statements [Table] Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum Tier 1 Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Ratio Well capitalized Tier 1 risk based capital ratio Subsequent Event Type [Axis] Real Estate Owned, Transfer from Real Estate Owned Transfer of loans to other real estate owned Pledged to secure Pledged to secure Pledged to secure amount Fair Value, Concentration of Risk [Table] Fair Value, Concentration of Risk [Table] Schedule of Finite-Lived Intangible Assets [Table Text Block] Summary of Amortizable Intangible Assets Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) Tax Effect Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Tax-exempt income Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash Flows from Financing Activities Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected life Collateralized Mortgage Obligations [Member] CMO/REMIC [Member] CMO/REMIC Fair Value, Recurring [Member] Fair Value on Recurring Basis [Member] Total future lease payments Lessee, Operating Lease, Liability, to be Paid Accounting Standards Update 2016-13 [Member] Impact of ASU 2016-13 Adoption [Member] Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: Imputed interest Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Allowance For Loans And Lease Loss Recovery Of Bad Debts Recoveries Allowance For Loans And Lease Loss Recovery Of Bad Debts Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Goodwill and Intangible Asset Impairment, Total Goodwill and Intangible Asset Impairment Goodwill impairment Interest and Dividend Income, Securities, Operating, Total Interest and Dividend Income, Securities, Operating Total interest income from investment securities Equity Components [Axis] Equity Components [Axis] Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) Before - Tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), before Tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), before Tax Number of loan production office. Number of Loan Production Office Number of loan production office Other Borrowings Federal Home Loan Bank advances and other borrowings Loans Pledged As Collaterals Loans Pledged As Collaterals Financing Receivable, Revolving Revolving loans amortized cost basis Equity Component [Domain] Equity Component [Domain] Entity Location Type Axis Entity Location Type [Axis] Federal Home Loan Bank, Advances, Affordable Housing Program, Principal Outstanding Affordable housing investments Asset Class [Axis] Asset Class [Axis] Goodwill and Intangible Assets Disclosure [Abstract] Business Acquisitions Pro Forma Information Table Business Acquisitions Pro Forma Information [Table] Loan Commitments, Policy [Policy Text Block] Reserve for Unfunded Loan Commitments Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due [Member] Financing receivable recorded investment nonaccrual. Financing Receivable Recorded Investment Nonaccrual Nonaccrual loans Other Noninterest Expense Other Recorded investment in collateral dependent loans on other financial instruments. Recorded Investment In Collateral Dependent Loans On Other Financial Instruments Other Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Due in one year or less, Amortized Cost, Held-to-maturity Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Other Noncash Investing and Financing Items [Abstract] Supplemental Disclosure of Non-cash Investing Activities Number Of Instruments Dependent On Collateral. Number Of Instruments Dependent On Collateral Number of Loans Dependent on Collateral Document Annual Report Bank Owned Life Insurance Bank owned life insurance (BOLI) Business Acquisition [Axis] Business Combination [Axis] Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum Tier 1 Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Amount Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Due after five years through ten years, Amortized Cost, Available-for-sale Share based compensation arrangement by share based payment award other than option compensation cost. Share Based Compensation Arrangement By Share Based Payment Award Other Than Option Compensation Cost Amount of compensation cost recognized Industry-Specific Policies, Insurance Companies [Policy Text Block] Bank Owned Life Insurance Noncash or Part Noncash Acquisition, Other Liabilities Assumed Other liabilities Postemployment Benefits [Abstract] Net Investment Income [Line Items] Net Investment Income [Line Items] Loan Pledged As Collateral Loan Pledged As Collateral Loan pledged as collateral Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum Minimum common equity Tier 1 capital ratio Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expense Building and Building Improvements [Member] Bank Premises [Member] Finite lived intangible assets additions Finite Lived Intangible Assets Additions Additions due to acquisitions Maximum [Member] Maximum [Member] Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Financial assets, Gross Amounts Not Offset in the Consolidated Balance Sheets, Collateral Pledged Represents Description of Conditions Relating to Clearing of Interest rate Swaps. Description of Conditions Relating to Clearing of Interest rate Swaps Description of Conditions Relating to Clearing of Interest rate Swaps Liabilities, Fair Value Disclosure Total liabilities Liabilities, Fair Value Disclosure, Total Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Total loans and lease finance receivables, net Loans and Leases Receivable, Net Amount Net loans and lease finance receivables Total loans, net of allowance for credit losses Statistical Measurement [Axis] Range [Axis] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised, Weighted Average Exercise Price Proceeds from Interest and Dividends Received, Total Proceeds from Interest and Dividends Received Interest and dividends received Finite-Lived Intangible Assets, Accumulated Amortization Balance of intangible assets, Accumulated Amortization, End of period Balance of intangible assets, Accumulated Amortization, Beginning of period Time Deposit Maturities, Year One 2026 Small Business Administration Loans [Member] Small Business Administration Loans [Member] Small Business Administration Loans [Member] SBA [Member] Other Purposes [Member] Other Purposes [Member] Other Purposes [Member] Fixed interest rate Derivative, Fixed Interest Rate Net Income (Loss) Available to Common Stockholders, Diluted, Total Net Income (Loss) Available to Common Stockholders, Diluted Net income allocated to common shareholders Financing Receivable, Allowance for Credit Loss [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Outstanding Borrowings [Member] Borrowings [Member] Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Financial assets, Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments Income Tax Contingency [Table] Income Tax Contingency [Table] Summary of Pledged Assets not Separately Reported on Statement of Financial Position Summary of pledged assets not separately reported on statement of financial position Disclosure Of Pledged Assets Not Separately Reported On Statement Of Financial Position. Disclosure Of Pledged Assets Not Separately Reported On Statement Of Financial Position [Table Text Block] Write-down of BOLI Bank Owned Life Insurance Income BOLI income Deferred Tax Assets, Operating Loss Carryforwards, Total Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforward Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Tax Credit Carryforward [Axis] Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent State and Local Income Taxes, Net of Federal Income Tax Effect, rate Securities Investment [Member] Securities Investment [Member] Provision for unfunded commitments during the period, representing either increases or decreases. Increase or Decrease in Provision for Unfunded Loan Commitments Increase in reserve for unfunded loan commitments Valuation allowance on OREO Provision for (recapture of) unfunded loan commitments Unfunded Commitments [Member] Unfunded Commitments [Member] Unfunded commitments [Members] Entity Public Float Gross charge-offs Revolving loans converted to term loans Gross charge-offs Revolving loans converted to term loans Gross charge-offs Revolving loans converted to term loans Percentage of total investment portfolio representing municipal bonds. Percentage of Total Investment Portfolio Representing Municipal Bonds Total investment portfolio representing municipal bonds, percentage Held to maturity securities portfolio percentage. Held To Maturity Securities Portfolio Percentage Total Percent, Held-to-maturity Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Volatility Payments for proceeds from interest earning assets. Payments For Proceeds from Interest Earning Assets Net change in interest-earning balances from depository institutions Securities Financing Transaction [Domain] Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Due after ten years, Fair Value, Held-to-maturity Other comprehensive income (loss) amortization of unrealized gain (loss) on securities transferred from available for sale to held to maturity before tax. Other Comprehensive Income Loss Amortization Of Unrealized Gain Loss On Securities Transferred From Available For Sale To Held To Maturity Before Tax Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, Before-tax Gross Unrealized Holding Losses, Available-for-sale Gross Unrealized Holding Losses, Available-for-sale Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total Debt Security Category [Axis] Debt Security Category [Axis] Purchased Credit Deteriorated (PCD) Loans Purchased credit deteriorated (PCD) loans. Purchased Credit Deteriorated (PCD) Loans Interest-bearing Deposit Liabilities, Total Interest-Bearing Deposit Liabilities Interest-bearing Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Revenue from Contract with Customer [Text Block] Revenue Recognition Business Combination [Table] Schedule of Business Acquisitions, by Acquisition [Table] Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Options exercisable lower price range Entity Registrant Name Debt Disclosure [Text Block] Borrowings Tier One Risk Based Capital Required For Capital Adequacy With Buffer Tier One Risk Based Capital Required For Capital Adequacy With Buffer Tier 1 Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Amount Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Holding Loss, Available-for-sale Entity Voluntary Filers Finite-Lived Intangible Asset, Expected Amortization, Year Two 2027 Percentage of additional contribution under profit sharing plan. Percentage Of Additional Contribution Under Profit Sharing Plan Increase in Employer Contribution Percentage to Profit Sharing Plan Deferred State and Local Income Tax Expense (Benefit) State Subsequent Events [Abstract] Other Assets Other Assets Disclosure [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Consolidated Entities [Domain] Consolidated Entities [Domain] Finite-Lived Intangible Asset, Expected Amortization, Year Three 2028 Income Tax Expense (Benefit) Income taxes Provision for income taxes Loss on sale AFS securities Debt Securities, Available-for-Sale, Gain (Loss) Debt Securities, Available-for-Sale, Gain (Loss), Total Loss on sale of investment securities Loss on sale available-for-sale securities Measurement Frequency [Axis] Measurement Frequency [Axis] Other investments Other Investments, Total Other Investments Stock Repurchased During Period, Value Repurchase of common stock Trust preferred securities included in tier one capital. Trust Preferred Securities Included In Tier One Capital Trust-preferred securities included in Tier 1 capital Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Proceeds from Life Insurance Policy Proceeds from BOLI death benefit Investment Income [Table Text Block] Summary of Interest Income Earned on Investment Securities Entity Common Stock, Shares Outstanding Financing Receivable, Modified, Weighted Average Term Increase from Modification, Description financing receivable, modified, weighted average term increase from modification, description US States and Political Subdivisions Debt Securities [Member] Municipal Bonds Gross charge-off total Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, Total Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, Total Disposal Group Classification [Axis] Disposal Group Classification [Axis] Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss, net of tax Citizens Business Bank [Member] Citizens Business Bank [Member] Bank [Member] Finite lived intangible assets, amortization. FiniteLived Intangible Assets Amortization Amortization Banking Regulation, Capital Conservation Buffer, Tier 1 Risk-Based Capital, Actual Capital Conservation Buffer Risk-Based Capital Ratio Commitments and Contingencies, Policy [Policy Text Block] Other Contingencies Purchase of premises and equipment Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period 2008 Equity Incentive Plan, granted restricted stock awards Granted, Shares Assets Total assets Total Assets Assets Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] State and Local Income Tax Paid, State and Local, after Refund Received Income Tax Paid, State and Local, after Refund Received, Total Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] Performing Financial Instruments [Member] Performing Financing Receivable [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable, Weighted Average Remaining Contractual Term Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] Income Statement [Abstract] Fair Value of Financial Instruments, Policy [Policy Text Block] Use of Fair Value Share-Based Payment Arrangement [Policy Text Block] Stock-Based Compensation Schedule Of Useful Life Of Property Plant And Equipment [Table Text Block] Schedule Of Useful Life Of Property Plant And Equipment [Table Text Block] Summary of Useful Lives of Principal Classes of Assets Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total Other Real Estate, Foreclosed Assets, and Repossessed Assets Balance, end of period Balance, beginning of period Deferred Income Tax Expense (Benefit) Deferred provision (benefit), total Fair Value of acquired investment securities Fair Value of Acquired Investment Securities fair value of acquired investment securities Percentage of core deposits to total deposits. Percentage of Core Deposits To Total Deposits Percentage of core deposits to total deposits Schedule Of Recorded Investment In Loans Held For Investment And Related Allowance For Loan Losses By Portfolio Segment [Table Text Block] Schedule Of Recorded Investment In Loans Held For Investment And Related Allowance For Loan Losses By Portfolio Segment [Table Text Block] Schedule of Recorded Investment in Loans Held-for-Investment and Related Allowance for Loan Losses by Loan Type Schedule Of Allowance For Loan Losses For Loans By Loan Portfolio [Table Text Block] Schedule Of Allowance For Loan Losses For Loans By Loan Portfolio [Table Text Block] Schedule of Balance and Activity Related to Allowance for Loan Losses for Held-for-Investment Loans by Type Lease, Cost [Abstract] Lease Cost Proceeds from Fees Received Service charges and other fees received Debt Securities, Available-for-Sale, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Initial ACL for PCD Loans at Acquisition Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum Tier 1 Capital (to Average-Assets), For Capital Adequacy Purposes, Amount Fair Value Member Securities Financing Transaction, Fair Value [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Vested, Shares Provision Recorded at Acquisition Provision Recorded at Acquisition Provision Recorded at Acquisition Earnings Per Share, Diluted [Abstract] Diluted earnings per common share: Business Combination [Abstract] Identifiable net assets acquired, at fair value Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Diluted earnings per common share Common Stocks, Including Additional Paid in Capital, Ending Balance Common Stocks, Including Additional Paid in Capital, Beginning Balance Common Stocks, Including Additional Paid in Capital, Total Common Stocks, Including Additional Paid in Capital Common stock, authorized 225,000,000 shares without par; issued and outstanding 135,551,799 at December 31, 2025 and 139,690,086 at December 31, 2024 Financing Receivable, Nonaccrual Nonaccrual Finite-Lived Intangible Asset, Expected Amortization, Year Five 2030 Deposit Account [Member] Service Charges on Deposit Accounts [Member] Period for principal or interest payment on loans remain accrual. Period For Principal Or Interest Payment On Loans Remain Accrual Number of days for which principal or interest payments on loans, excluding PCI loans remain accrual The acquisition of other real estate owned through foreclosure, representing an increase the balance of other real estate owned during the period. Other Real Estate And Foreclosed Assets Additions Additions City Area Code Percentage of Interest-Bearing Domestic Deposits to Deposits, Savings Savings, percentage of total deposits Average life of investment grade debt securities. Average Life Of Investment Grade Debt Securities Average life of investment grade debt securities, years Certain Loans Acquired in Transfer Accounted for as Debt Securities, Carrying Amount, Net Debt Securities Carrying Amount Net Business Combination, Pro Forma Information, Pro Forma Revenue Total revenues (net interest income plus noninterest income) Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Contractual Cash Flow, Estimated Uncollectible Contractual principal cash flows, loans not expected to be collected Interest expense borrowings and customer repurchase agreements. Interest Expense Borrowings And Customer Repurchase Agreements Borrowings and customer repurchase agreements Auditor Name Total deposits Deposits Total deposits Commercial Real Estate [Member] Commercial Real Estate [Member] Commercial and Industrial [Member] Commercial And Industrial [Member]. Commercial And Industrial [Member] Quarterly Financial Information [Table Text Block] Summarized Quarterly Financial Data Buildings and Improvements, Gross, Total Buildings and Improvements, Gross Bank premises Line of Credit Facility, Maximum Borrowing Capacity Available lines of credit Borrowing Capacity Business Combination [Line Items] Business Acquisition [Line Items] Interest Rate Swap Agreements With Customers [Member] Interest-rate swap agreements with customers. Interest-rate Swap Agreements with Customers [Member] Fair Value Hedging [Member] Fair Value Hedging [Member] HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValues HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValues Fair Value, Held-to-maturity Period when principal or interest payment are past due to consider loans. Period When Principal Or Interest Payment Are Past Due To Consider Loans Number of days over which principal or interest payments are past due to consider loans, excluding PCI loans Business Exit Costs Termination fee Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Junior subordinated debentures Operating Lease, Weighted Average Remaining Lease Term Weighted average remaining lease term (years) Time Deposit Maturities, Year Two 2027 Total lease expense Lease, Cost Total lease expense Low-income housing tax credits and other, rate Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Liability Derivatives Derivative Liability, Fair Value, Gross Liability, Total Derivative Liability, Subject to Master Netting Arrangement, before Offset Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Cash and Cash Equivalents, Policy [Policy Text Block] Cash and cash equivalents Business Combination, Consideration Transferred, Equity Interest Assets and assumed all of the liabilities, stock CVBF common stock issued Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net Premises and equipment, net Premises and equipment, net Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum Common equity Tier I capital ratio, For Capital Adequacy Purposes, Amount Suncrest Bank [Member] Suncrest bank member. Suncrest Bank [Member] Operating Income (Loss), Total Operating Income (Loss) Net Operating Income Loss Line of Credit Facility, Capacity Available for Trade Purchases Available Capacity Summary Of Unrealized Loss On Investments Unrealized Loss On Investments Table TextBlock Unrealized Loss On Investments Table TextBlock Pledged to secure unused borrowing capacity Pledged To Secure Unused Borrowing Capacity Pledged To Secure Unused Borrowing Capacity Finite and indefinite lived intangible amortization assets net. Finite And Indefinite Lived Intangible Amortization Assets Net Amortization Retained Earnings [Member] Retained Earnings [Member] Summary of Loans by Type and Origination Year, According to our Internal Risk Ratings Summary of loans by type and origination year, according to our internal risk ratings Loans By Type And Origination Year According To Our Internal Risk Ratings Loans By Type And Origination Year According To Our Internal Risk Ratings [Table Text Block] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Net realized loss on investment securities reclassified into earnings Before-tax Loans And Lease Finance Receivables Loans And Lease Finance Receivables Loans and lease finance receivables Total loans, at amortized cost Share-based Payment Arrangement, Noncash Expense, Total Share-Based Payment Arrangement, Noncash Expense Stock-based compensation Period when collection of interest on principal is no longer probable. Period When Collection Of Interest On Principal Is No Longer Probable Number of days on which collection of interest on principal is no longer probable Fair Value, Less Than 12 Months, Available-for-sale Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Operating Lease, Weighted Average Discount Rate, Percent Weighted average discount rate Operating Lease, Liability, Noncurrent Total lease liabilities Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Payments for (Proceeds from) Federal Home Loan Bank Stock, Total Payments for (Proceeds from) Federal Home Loan Bank Stock Net change in FHLB, FRB, and other stock Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by (used in) financing activities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Accrued Interest Receivable Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Accrued Interest Receivable Accrued interest receivable Collateral Held [Domain] Derivative, Average Remaining Maturity Remaining Maturity Year Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Financial liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheets, Net Amount Financial liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheets, Net Amount Financial liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheets, Net Amount 2018-2017 Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 2022 Auditor Location Secured Debt [Member] Secured [Member] Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Due after five years through ten years, Fair Value, Available-for-sale Derivative Contract [Domain] Derivative Contract [Domain] Business Combination, Recognized Asset Acquired, Receivable, Current Loans Condensed Cash Flow Statement [Table Text Block] Condensed Statements of Cash Flows Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum Well capitalized common equity Tier 1 capital ratio Non-US [Member] Other Derivative, Remaining Maturity Remaining Maturity Investment securities Business Combination, Recognized Asset Acquired, Investment in Debt and Equity Securities, Current Income Tax Jurisdiction [Domain] Income Tax Authority [Domain] Financing Receivable, Modified [Line Items] Financing Receivable, Modifications [Line Items] Debt Securities, Available-for-Sale [Table] Entity Interactive Data Current Statement of Income Location, Balance [Domain] Income Statement Location [Domain] Other Income [Member] Other Income [Member] Fair Value Measurement [Domain] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash Flows from Operating Activities Furniture and Fixtures [Member] Furniture, Fixtures and Equipment [Member] Gain (Loss) on Sale of Properties Gain (Loss) on Sale of Properties Loan Restructuring Modification [Domain] Net amortization of premiums and discounts on investment securities Accretion (Amortization) of Discounts and Premiums, Investments Net amortization of premiums and discounts on investment securities Deferred Income Tax Deferred Income Tax Deferred income taxes, net SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] Business Combination, Pro Forma Information [Abstract] Banking Regulation, Total Capital, Actual Total Capital (to Risk-Weighted Assets), Actual, Amount Components of Deferred Tax Liabilities [Abstract] Deferred tax liabilities: Common Stock, Dividends, Per Share, Declared Cash dividends per common share Schedule Of Activity In Trouble Debt Restructurings [Table Text Block] Schedule Of Activity In Trouble Debt Restructurings [Table Text Block] Summary of Activity Related to Troubled Debt Restructurings Adjustment of transition reserve for loans. Adjustment Of Transition Reserve For Loans Adjustment Of Transition Reserve For Loans Entity Tax Identification Number Long-Term Debt, Type [Axis] Long-term Debt, Type [Axis] Schedule of Balances of the Company's tax credit Investments and Related Unfunded Commitment Schedule of Balances of the Company's tax credit Investments and Related Unfunded Commitment [Table Text Block] Schedule of Balances of the Company's tax credit Investments and Related Unfunded Commitment [Table Text Block] Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Proceeds from maturity of investment securities available-for-sale Occupancy, Net Occupancy and equipment Offsetting Liabilities [Table] Interest earning balances due from depository institutions. Interest Earning Balances Due From Depository Institutions Interest-earning balances due from depository institutions Valuation allowance on other real estate owned Valuation allowance on other real estate owned Valuation allowance on OREO Local Phone Number Auditor Opinion Auditor Opinion [Text Block] Loan And Leases Receivable Allowance Loan And Leases Receivable Allowance Allowance for credit losses Beginning Balance Ending Balance Less: Allowance for credit losses Less: Allowance for credit losses Allowance for credit losses Lease Other Information Abstract Lease Other Information [Abstract] Other Information Noninterest Expense Total noninterest expense Other expense, net Tax credit amortization expense Unrecognized Tax Benefits, Interest on Income Taxes Expense Accounting Policies [Abstract] Modifications of Loans to Borrowers [Policy TextBlock] Modifications of Loans to Borrowers Policy TextBlock Modifications of Loans to Borrowers Experiencing Financial Difficulty Dairy and livestock and agribusiness. Dairy And Livestock And Agribusiness [Member] Dairy & Livestock and Agribusiness [Member] Previously Reported [Member] Previously Reported [Member] Disaggregation of Revenue [Line Items] Offsetting Liabilities [Line Items] Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Due after one year through five years, Amortized Cost, Held-to-maturity Allowance For Loan And Lease Losses Charge-offs Net Allowance For Loan And Lease Losses Charge-offs Net Allowance for charge-offs Finite And Indefinite Lived Intangible Assets Net Finite And Indefinite Lived Intangible Assets Net Balance of intangible assets, Net CDI Amount, End of period Balance of intangible assets, Net CDI Amount, Beginning of period Financing Receivables Current [Member] Financing Receivables Current [Member] Lessee, Operating Lease, Liability, to be Paid, Year Four 2029 Class of Stock [Domain] Repayment of junior subordinated debentures Repayment of junior subordinated debentures Payments for Repurchase of Trust Preferred Securities Labor and Related Expense Salaries and employee benefits Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Weighted-average period for expected cost recognized Income Tax Paid, Federal, after Refund Received [Abstract] Cash paid for transferred Tax Credits: Net Investment in Lease, Allowance for Credit Loss, Recovery Recovery Commercial and Industrial Loans [Member] Commercial and Industrial Loans [Member] Commercial and Industrial [Member] Entity Emerging Growth Company Revision of Prior Period, Accounting Standards Update, Adjustment [Member] Revision of Prior Period, Accounting Standards Update, Adjustment [Member] Cumulative adjustment upon adoption of ASU 2016-13 [ Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Vested or expected to vest, Weighted Average Remaining Contractual Term Federal Home Loan Bank Advances and Other Borrowings [Member] Federal Home Loan Bank Advances [Member] Tax Credit Carryforward, Name [Domain]