Consolidated Entities [Domain] Consolidated Entities [Axis] Provision for (Recapture of) Credit Losses Remaining Outstanding Balance Of PPP Loans Remaining outstanding balance of ppp loans Common stock, authorized, 225,000,000 shares without par; issued and outstanding 135,927,287 at June 30, 2021, and 135,600,501 at December 31, 2020 Investment securities held-to-maturity (with fair value of $1,055,523 at June 30, 2021, and $604,223 at December 31, 2020) Investment securities available-for-sale, at fair value (with amortized cost of $2,908,746 at June 30, 2021, and $2,344,174 at December 31, 2020) (Recapture of) provision for unfunded loan commitments Net (decrease) increase in time deposits Other comprehensive income (loss), net of tax Less: Income tax (expense) benefit related to items of other comprehensive income Unrealized gain (loss) on securities arising during the period, before tax Subsequent Events [Abstract] Fair Value, Available-for-sale Gross Unrealized Holding Losses, Available-for-sale Total interest income from held-to-maturity securities Total interest income from available-for-sale securities Other comprehensive income (loss) Issuance of common stock for acquisition, shares Issuance of common stock for acquisition Stock Issued During Period, Shares, Acquisitions Stock Issued During Period, Value, Acquisitions Commitments and Contingencies Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Total lease expense Transfer to OREO Real Estate Owned, Transfer to Real Estate Owned Proceeds from (Repayments of) Other Debt, Total Proceeds from (Repayments of) Other Debt Net change, After-tax Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total Debt, Long-term and Short-term, Combined Amount, Total Provision for Loan, Lease, and Other Losses, Total Derivative Asset, Fair Value, Gross Asset, Total Finite-Lived Intangible Assets, Net, Ending Balance Finite-Lived Intangible Assets, Net, Beginning Balance Finite-Lived Intangible Assets, Net, Total Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax Net change, Before-tax Derivative, Collateral, Right to Reclaim Cash Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged Derivative Liability, Collateral, Right to Reclaim Cash, Offset Financial liabilities, Gross Amounts Offset in the Condensed Consolidated Balance Sheets Lease, Cost [Abstract] Lease Cost Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: Imputed interest Disaggregation of Revenue [Line Items] Debt Securities, Held-to-maturity, Fair Value, Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss, Total Derivative Liability, Fair Value, Gross Liability, Total Derivative Asset, Fair Value, Amount Not Offset Against Collateral, Total Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total Total loans and lease finance receivables, net Portion at Fair Value Measurement [Member] [Default] Portion at Fair Value Measurement [Member] Investment securities held-to-maturity Investment securities available-for-sale Subsequent Events Closing stock price Share Price Total assets Total deposits Net increase in cash and cash equivalents Net increase in customer repurchase agreements Net (decrease) increase in other borrowings Repayment of junior subordinated debentures Repayments of Subordinated Short-term Debt Net cash used in investing activities Net decrease (increase) in loan and lease finance receivables Purchase of BOLI Payment to Acquire Life Insurance Policy, Investing Activities (Recapture of) provision for unfunded loan commitments Fixed exchange ratio Fixed Exchange Ratio Fixed exchange ratio. Stock price per share Sale of Stock, Price Per Share Gross loans Long-term Debt, Gross Total payment to acquire merger entity Payments to Acquire Businesses, Gross Name of the merging entity Business Acquisition, Name of Acquired Entity Suncrest Bank Suncrest Bank [Member] Suncrest bank member. Date of definitive agreement Business Acquisition, Date of Acquisition Agreement Subsequent Event [Line Items] Subsequent events Subsequent Event [Member] Subsequent Event Type [Domain] Subsequent Event Type [Axis] Subsequent Event [Table] SUBSEQUENT EVENTS Subsequent Events [Text Block] Financial liabilities, Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets Financial assets, Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets Net change in fair value recorded in accumulated OCI, After-tax Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax Total loans Diluted weighted average shares outstanding Net earnings allocated to common shareholders Allowance for credit losses for securities in unrealized loss position Allowance for credit losses for securities in unrealized loss position. Debt securities, held-to-maturity, allowance for credit loss Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance Debt Securities, Held-to-maturity, Allowance for Credit Loss, Beginning Balance Debt Securities, Held-to-maturity, Allowance for Credit Loss, Total Debt Securities, Held-to-maturity, Allowance for Credit Loss Fair Value Measurement [Domain] Investment securities held-to-maturity Investment securities available-for-sale 2021 (excluding the six months ended June 30, 2021) ROU assets Securities Sold under Agreements to Repurchase, Total Interest and Fee Income, Loans and Leases Held-in-portfolio, Total Noninterest-bearing Deposit Liabilities, Total Derivative Liability, Fair Value, Amount Offset Against Collateral, Total Other Real Estate, Ending Balance Other Real Estate, Beginning Balance Other Real Estate, Total Loans and Leases Receivable, Allowance, Total Depreciation, Amortization and Accretion, Net, Total Operating Lease, Liability, Total Financing Receivable, before Allowance for Credit Loss, Total Payments to Suppliers and Employees, Total Cash and Due from Banks, Total Goodwill, Beginning Balance Goodwill, Total Weighted Average Number of Shares Outstanding, Basic, Total Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total 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 Entity Address, State or Province Document Fiscal Period Focus Finite-Lived Intangible Assets, Net Intangibles Interest Receivable Accrued interest receivable Bank Owned Life Insurance Bank owned life insurance (BOLI) Liabilities [Abstract] Liabilities: Payable for securities purchased. Payable For Securities Purchased Payable for securities purchased Statement [Table] Statement [Table] Deposit Account [Member] Service Charges on Deposit Accounts [Member] Proceeds from Stock Options Exercised Proceeds from exercise of stock options Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Proceeds from Interest and Dividends Received Interest and dividends received Financing Receivables [Text Block] Loans and Lease Finance Receivables and Allowance for Credit Losses Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of Components of Loans and Lease Finance Receivables, Excluding PCI Loans 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 Statement [Line Items] Statement [Line Items] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Increase (Decrease) in Other Operating Assets and Liabilities, Net Change in other assets and liabilities Reserve for undisbursed commitments. Reserve For Undisbursed Commitments Reserve for credit risk for undisbursed commitments Loans receivable percentage of portfolio. Loans Receivable Percentage Of Portfolio Percentage of total gross loan portfolio (excluding PCI loans) Loans classified as a troubled debt restructured. Loans Classified As Troubled Debt Restructured Loans classified as troubled debt restructured Provision for Loan, Lease, and Other Losses Provision For Credit Losses Commercial and Industrial Loans [Member] Commercial and Industrial Loans [Member] Commercial and Industrial [Member] Dairy and livestock loans. Dairy And Livestock Loans [Member] Dairy & Livestock Loans [Member] Type of Adoption [Domain] Type of Adoption [Domain] Financing Receivable, Originated in Current Fiscal Year 2021 Financing Receivable, Originated Four Years before Latest Fiscal Year 2017 Financing Receivable Revolving Loans Converted To Term Loans Financing Receivable Revolving Loans Converted To Term Loans Revolving loans converted to term loans Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] Performing Troubled Debt Restructuring [Member] Performing Troubled Debt Restructuring [Member] Performing TDRs [Member] The increase (decrease) in performing troubled debt restructurings financing receivables, because of returns to accrual status. Financing Receivable Recorded Investment Troubled Debt Restructurings Accrual Status TDRs returned to accrual status Financing Receivables Impaired Troubled Debt Restructuring Additions Financing Receivables Impaired Troubled Debt Restructuring Additions New modifications Payments to Acquire Equity Method Investments Net increase in equity investments Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Proceeds from repayment and maturity of investment securities held-to-maturity Fair Value Measurements, Nonrecurring [Table Text Block] Assets and Liabilities Measured at Fair Value on Non-Recurring Basis Schedule of Investments [Table] Schedule of Investments [Table] Collateralized Mortgage Backed Securities [Member] Mortgage-backed Securities [Member] Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Gross Unrealized Holding Loss, Held-to-maturity 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] Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Fair Value, 12 Months or Longer, Available-for-sale Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Fair Value, Available-for-sale Net Income (Loss) Available to Common Stockholders, Basic Net earnings allocated to common shareholders Assets, Fair Value Disclosure Total assets Total assets Derivative Asset Financial assets, Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets Interest rate swaps, assets Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Investment securities. Investment Securities [Member] Investment Securities-AFS [Member] Assets, Fair Value Disclosure [Abstract] Description of assets Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] Debt, Long-term and Short-term, Combined Amount Borrowings Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Derivative Contract [Domain] Derivative Contract [Domain] Other Liabilities [Member] Other Liabilities [Member] Derivative Asset, Fair Value, Gross Asset Asset Derivatives 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 Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Other Assets, Total Increase (Decrease) in Time Deposits, Total Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Impaired Financing Receivable, Recorded Investment, Total Share-based Payment Arrangement, Noncash Expense, Total Amortization of Intangible Assets, Total Income Tax Expense (Benefit), Total Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Noninterest Income, Other, Total Interest and Dividend Income, Securities, Operating, Total Deferred Compensation Liability, Current and Noncurrent, Total Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total Earnings Per Share, Basic, Total Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total Dividend Income, Operating, Total Financing Receivable, Allowance for Credit Loss, Ending Balance Financing Receivable, Allowance for Credit Loss, Beginning Balance Net Income (Loss) Available to Common Stockholders, Diluted, Total Other Liabilities, Total Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total Proceeds from Interest and Dividends Received, Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax, Total Available-for-sale Securities, Total Interest-bearing Deposit Liabilities, Total Payments to Acquire Property, Plant, and Equipment, Total Earnings Per Share, Diluted, Total Derivative Asset, Fair Value, Amount Offset Against Collateral, Total Goodwill, Ending Balance Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total Derivative Liability, Fair Value, Amount Not Offset Against Collateral, Total Cover [Abstract] Document Quarterly Report Marketing Expense Marketing and promotion Labor and Related Expense Salaries and employee benefits Amortization of Intangible Assets Document Transition Report Document Period End Date Entity Registrant Name Entity Current Reporting Status Trading Symbol Title of 12(b) Security Security Exchange Name Entity File Number Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, Postal Zip Code City Area Code Local Phone Number Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Document Type Entity Interactive Data Current Current Fiscal Year End Date Entity Central Index Key Document Fiscal Year Focus Amendment Flag Entity Address, Address Line Two Statement of Financial Position [Abstract] Assets [Abstract] Assets Interest earning balances due from depository institutions. Interest Earning Balances Due From Depository Institutions Interest-earning balances due from depository institutions Interest-earning balances due from Federal Reserve. Interest Earning Balances Due from Federal Reserve Interest-earning balances due from Federal Reserve Cash and Due from Banks Cash and due from banks Federal Home Loan Bank Stock Investment in stock of Federal Home Loan Bank (FHLB) Goodwill Goodwill Debt Securities, Held-to-maturity Amortized Cost, Held-to-maturity Income tax asset net Income Tax Asset Net Income taxes Loans and Leases Receivable, Net of Deferred Income Loans and lease finance receivables Total loans, at amortized cost Marketable Securities Total investment securities Other Assets Other assets Other Real Estate Other real estate owned (OREO) Property, Plant and Equipment, Net Premises and equipment, net Loans and Leases Receivable, Net Amount Net loans and lease finance receivables Total loans, net of allowance for loan losses Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Total cash and cash equivalents Total cash and cash equivalents Debt Securities, Available-for-sale Total Available-for-sale Securities, Debt Maturities, Available-for-sale, Fair Value Loans and Leases Receivable, Allowance Ending Balance Beginning Balance Allowance for credit losses Less: Allowance for credit losses Assets Total assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities Total liabilities Deposits [Abstract] Deposits: Interest-bearing Deposit Liabilities Interest-bearing Noninterest-bearing Deposit Liabilities Noninterest-bearing Deposits Total deposits Deferred Compensation Liability, Current and Noncurrent Deferred compensation Other Borrowings Other borrowings Other Liabilities Other liabilities Securities Sold under Agreements to Repurchase Customer repurchase agreements Liabilities and Equity Total liabilities and stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Common Stocks, Including Additional Paid in Capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income, net of tax Stockholders' Equity Attributable to Parent Ending balance Beginning balance Total stockholders' equity Retained Earnings (Accumulated Deficit) Retained earnings Debt Securities, Held-to-maturity, Fair Value Fair Value, Held-to-maturity Debt Securities, Available-for-sale, Amortized Cost Amortized cost Amortized Cost, Available-for-sale Common Stock, No Par Value Common stock, par value Common Stock, Shares Authorized Common stock, authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Income Statement [Abstract] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Credit Card [Member] Bankcard Services [Member] Fiduciary and Trust [Member] Interest Expense, Deposits, Total Common Stock, Shares, Issued, Total Incremental Common Shares Attributable to Share-based Payment Arrangements, Total Provision for Loan and Lease Losses, Total Payments for (Proceeds from) Loans and Leases, Total Increase (Decrease) in Other Deposits Net increase in other deposits Increase (Decrease) in Time Deposits Payments for Repurchase of Common Stock Repurchase of common stock Payments of Ordinary Dividends, Common Stock Cash dividends on common stock Net Cash Provided by (Used in) Operating Activities [Abstract] Cash Flows from Operating Activities Interest Paid, Including Capitalized Interest, Operating and Investing Activities Interest paid Proceeds from Fees Received Service charges and other fees received Payments to Suppliers and Employees Net cash paid to vendors, employees and others Income taxes. Income Taxes Income taxes Other Noncash Investing and Financing Items [Abstract] Supplemental Disclosure of Non-cash Investing Activities Liabilities Assumed Securities purchased and not settled Reconciliation Of Net Earnings To Net Cash Provided By Operating Activities [Abstract] Reconciliation Of Net Earnings To Net Cash Provided By Operating Activities [Abstract] Reconciliation of Net Earnings to Net Cash Provided by Operating Activities Organization, Consolidation and Presentation of Financial Statements [Abstract] Reserve for Unfunded Loan Commitments Nature of Operations [Text Block] Business Basis of Accounting [Text Block] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Investments, Debt and Equity Securities [Abstract] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investment Securities Receivables [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Earnings Per Share Reconciliation Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value Information Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Financial Instruments Equity [Abstract] Comprehensive Income (Loss) Note [Text Block] Other Comprehensive Income Text Block [Abstract] 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 Leases [Abstract] Lessee, Operating Leases [Text Block] Leases Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Text Block] Revenue Recognition Use of Estimates, Policy [Policy Text Block] Use of Estimates in the Preparation of Financial Statements Reclassification, Policy [Policy Text Block] Reclassification 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 Schedule of Unrealized Loss on Investments [Table Text Block] Summary of Continuous Unrealized Loss Position of Securities Investment Income [Table Text Block] Summary of Interest Income Earned on Investment Securities Investments Classified by Contractual Maturity Date [Table Text Block] Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity 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 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, Excluding PCI Loans by Class of Loans Troubled Debt Restructurings on Financing Receivables [Table Text Block] Summary of Loans Modified as Troubled Debt Restructurings 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] Summary of loans by type and origination year, according to our internal risk ratings 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] Basis [Domain] Due To Forecast Of Severe Economic Dowturn [Member]. Due To Forecast Of Severe Economic Dowturn [Member] Dairy and livestock and agribusiness. Dairy And Livestock And Agribusiness [Member] Consumer Other [Member] Consumer Other [Member] Consumer and other loans [Member] Consumer Mortgage [Member]. Consumer Mortgage [Member] SFR mortgage [Member] SFR Mortgage [Member] Commercial And Industrial [Member]. Commercial And Industrial [Member] Commercial Trade Financing [Member]. Commercial Trade Financing [Member] SBA [Member] Municipal lease finance receivables. Municipal Lease Finance Receivables [Member] Municipal Lease Finance Receivables [Member] Paycheck protection program [Member]. ] Paycheck Protection Program [Member] SBA - Paycheck Protection Program (PPP) [Member] Trust and Investment Services [Member] Trust and Investment Services [Member] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion Accretion of discount for acquired loans, net Depreciation, Amortization and Accretion, Net Depreciation and amortization, net Period changes in bank owned life insurance. Period Changes in Bank Owned Life Insurance Increase in BOLI Investment securities pledged as collateral 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 Debt securities weighted average remaining contractual maturity term. Debt Securities Weighted Average Remaining Contractual Maturity Term Debt securities weighted average remaining contractual maturity term Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] UNITED STATES United States [Member] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Allocation of reserves to troubled debt restructuring. Allocation Of Reserves To Troubled Debt Restructuring Allocation of allowance to troubled debt restructuring Impaired Financing Receivable, Recorded Investment Impaired, at carrying value 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 Financing Receivable, before Allowance for Credit Loss, Total Notes receivable gross Financing Receivable, Allowance for Credit Losses Allowance for Credit Losses Loans Receivable Held-for-sale, Amount Loans held-for-sale Loans Pledged as Collateral Secure borrowings and available lines of credit from FHLB and Federal Reserve Bank Percentage of increase decrease in macro economic factors. Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Junior subordinated debentures Percentage of Increase Decrease In Macro Economic Factors Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total Allowance For Credit Losses Increase Decrease Financing Receivable, Allowance for Credit Loss, Writeoff Allowance For Credit Losses Write Offs Recapture of provision of credit losses. Recapture Of Provision Of Credit Losses Recapture of provision for credit losses Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Loans Excluding Purchased Credit Impaired Loans [Member] Loans Excluding Purchased Credit Impaired Loans [Member] Loans, Excluding PCI Loans [Member] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Performing Financial Instruments [Member] Performing Financing Receivable [Member] Secured By Farm Land [Member] Secured By Farm Land [Member] Loans Secured by Farmland [Member] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Class of Financing Receivable, Type [Domain] Commercial Real Estate [Member] Commercial Real Estate [Member] Construction Loans [Member] Construction [Member] Agribusiness. Agribusiness [Member] Agribusiness Loans [Member] Real Estate Loan [Member] Commercial Real Estate Loans [Member] Commercial real estate [Member] Single Family Residential Loan [Member] Single Family Residential Loan [Member] Single-family Residential Loans [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Major Property Class [Axis] Major Property Class [Axis] Major Property Class [Domain] Major Property Class [Domain] Secured By Dairy And Live Stock Land [Member] Secured By Dairy And Live Stock Land [Member] Loans Secured by Dairy & Livestock Land [Member] Secured By Agricultural Land [Member] Secured By Agricultural Land [Member] Loans Secured by Agricultural Land [Member] CVBF macro economic factors. CVBF Macro Economic Factors [Axis] Macro Economic Factors [Axis] CVBF macro economic factors. CVBF Macro Economic Factors [Domain] Macro Economic Factors [Domain] GDP [Member]. GDP [Member] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario [Domain] Forecast [Member] Forecast [Member] Basis [Axis]. Basis [Axis] Basis. Loans receivable construction. Loans Receivable Construction Construction Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Abstract] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 2020 Financing Receivable, Originated Two Years before Latest Fiscal Year 2019 Financing Receivable, Originated Three Years before Latest Fiscal Year 2018 Financing Receivable, Originated Five or More Years before Latest Fiscal Year Prior Loans and Leases Receivable, Gross Total loans Total Financing Receivable, Revolving Revolving loans amortized cost basis Pass [Member] Special Mention [Member] Substandard [Member] Doubtful [Member] Commercial real estate loans. Commercial Real Estate Loans [Member] Commercial real estate loans [Member] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Allowance for Loan and Lease Losses, Write-offs Charge-offs Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gross Unrealized Holding Losses, 12 Months or Longer, Available-for-sale Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Gross Unrealized Holding Losses, Available-for-sale Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Gross Unrealized Holding Losses, Less Than 12 Months, Available-for-sale Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Fair Value, Less Than 12 Months, Available-for-sale Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Derivatives Not Designated as Hedging Instruments [Member] Derivative, Gain on Derivative Amount of Gain Recognized in Income on Derivative Instruments Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Other Income [Member] Other Income [Member] Other comprehensive income (loss) amortization of unrealized gain (loss) on securities transferred from available for sale to held to maturity before tax. Due after five years through ten years, Amortized Cost, Held-to-maturity Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Due after ten years, Fair Value, Available-for-sale Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due in one year or less, Amortized Cost, Available-for-sale Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due in one year or less, Fair Value, Available-for-sale Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Due after one year through five years, Amortized Cost, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after five years through ten years, Fair Value, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after one year through five years, Fair Value, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Amortized Cost Total Held-to-maturity, Debt Maturities, Amortized Cost Basis Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Due after ten years, Fair Value, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value Earnings Per Share, Basic Basic earnings per common share Earnings Per Share, Diluted Diluted earnings per common share Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Earnings before income taxes Income Tax Expense (Benefit) Income taxes Interest and Dividend Income, Operating [Abstract] Interest income: Dividend Income, Operating Dividends from FHLB stock Interest and Dividend Income, Operating Total interest income Interest and Dividend Income, Securities, by Taxable Status [Abstract] Investment securities: Interest Income, Debt Securities, Operating Total investment income Interest and Dividend Income, Securities, Operating, Available-for-sale Interest Income, Debt Securities, Held-to-maturity 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 Interest and Fee Income, Loans and Leases Held-in-portfolio Loans and leases, including fees Net Income (Loss) Attributable to Parent Net earnings Net earnings Noninterest Expense [Abstract] Noninterest expense: Occupancy, Net Occupancy and equipment Noninterest Expense Total noninterest expense Amortization of intangible assets Other Noninterest Expense Other Professional Fees Professional services Computer software expense. Computer Software Expense Computer software expense Noninterest Income [Abstract] Noninterest income: Noninterest income: Bank Owned Life Insurance Income BOLI income Noninterest Income, Other Other Other Noninterest Income Total noninterest income Total noninterest income Revenue from Contract with Customer, Including Assessed Tax Revenue from contract with customer, including assessed tax Revenue from contract with customer Gains losses on other real estate net. Gains Losses On Other Real Estate Net Gain on OREO, net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss) income: Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax 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 Interest Expense [Abstract] Interest expense: Interest Expense Total interest expense Interest expense borrowings and customer repurchase agreements. Interest Expense Borrowings And Customer Repurchase Agreements Borrowings and customer repurchase agreements Interest Expense, Deposits Deposits Interest Expense, Subordinated Notes and Debentures Junior subordinated debentures Interest Income (Expense), after Provision for Loan Loss Net interest income after (recapture of)  provision for credit losses Interest Income (Expense), Net Net interest income before (recapture of) provision for credit losses Recapture of provision for loan and lease losses. Recapture of Provision For Loan and Lease Losses (Recapture of) provision for credit losses Statement of Stockholders' Equity [Abstract] Common Stock Including Additional Paid in Capital [Member] Common Stock [Member] Retained Earnings [Member] Retained Earnings [Member] AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Member] Dividends, Common Stock, Cash Cash dividends declared on common stock Shares, Issued Ending balance, shares Beginning balance, shares Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Shares issued pursuant to stock-based compensation plan, shares Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of stock options, shares Stock Repurchased During Period, Value Repurchase of common stock Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Shares issued pursuant to stock-based compensation plan Stock Repurchased During Period, Shares Repurchase of common stock, shares Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Revision of Prior Period [Axis] Revision of Prior Period [Domain] Revision of Prior Period, Accounting Standards Update, Adjustment [Member] Cumulative adjustment upon adoption of ASU 2016-13 [ Member] Common Stock, Dividends, Per Share, Declared Cash dividends per common share Statement of Cash Flows [Abstract] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net earnings to net cash provided by operating activities: Accretion (Amortization) of Discounts and Premiums, Investments Net amortization of premiums and discounts on investment securities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Total adjustments Gains (Losses) on Sales of Other Real Estate Gain on OREO, net Gain on sale of other real estate owned Total, Held-to-maturity, Fair Value Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Due in one year or less, Amortized Cost, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due in one year or less, Fair Value, Held-to-maturity Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Due after ten years, Amortized Cost, Held-to-maturity Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after one year through five years, Amortized Cost, Available-for-sale Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after one year through five years, Fair Value, Available-for-sale Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after five years through ten years, Fair Value, Available-for-sale Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after five years through ten years, Amortized Cost, Available-for-sale Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Due after ten years, Amortized Cost, Available-for-sale Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-sale, Debt Securities Investment in FHLB stock, impairment losses Debt Securities, Available-for-sale, Restricted Troubled debt restructurings, Number of Loans Financing Receivable, Troubled Debt Restructuring, Premodification Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment Financing Receivable, Troubled Debt Restructuring, Postmodification Troubled debt restructurings, Post-Modification Outstanding Recorded Investment Financing receivable modifications troubled debt restructurings, term modification recorded investment. Financing Receivable Modifications Troubled Debt Restructurings Term Modification Recorded Investment Troubled debt restructurings, Outstanding Recorded Investment Financial effects resulting from modifications represent charge-offs and specific allowance recorded at modification date. Financing Effects Of Modifications Recorded Investment Troubled debt restructurings, Financial Effect Resulting From Modifications Loan Restructuring Modification [Axis] Loan Restructuring Modification [Domain] Contractual Interest Rate Reduction [Member] Interest rate reduction [Member] Change in Amortization Period [Member]. Change in Amortization Period [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities excluded from computation of earnings per common share Earnings Per Share, Basic [Abstract] Earnings per common share: Net earnings allocated to restricted stock. Net Earnings Allocated To Restricted Stock Less: Net earnings allocated to restricted stock Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding Weighted average shares outstanding Earnings Per Share, Diluted [Abstract] Diluted earnings per common share: Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Incremental shares from assumed exercise of outstanding options Net Income (Loss) Available to Common Stockholders, Diluted Net income allocated to common shareholders Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average shares outstanding Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Available-for-sale Securities Investment securities - AFS Derivative Liability Financial liabilities, Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets Swaps Financial and Nonfinancial Liabilities, Fair Value Disclosure Total liabilities Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Level 3 [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurements, Recurring [Member] Fair Value on Recurring Basis [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Interest Rate Swap [Member] Interest Rate Swaps [Member] Residential Mortgage Backed Securities [Member] Residential Mortgage-backed Securities [Member] Measurement Basis [Axis] Measurement Basis [Axis] Reported Value Measurement [Member] Carrying Value [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Disposal Group, Held-for-sale, Not Discontinued Operations [Member] Asset Held-for-Sale [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value on Non-Recurring Basis [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Muncipal Lease Finance Receivables [Member]. Muncipal Lease Finance Receivables [Member] Fair Value, Concentration of Risk [Table] Fair Value, Concentration of Risk [Table] Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Assets Interest-bearing Deposits in Banks and Other Financial Institutions Interest-earning balances due from depository institutions Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Liabilities Estimate of Fair Value Measurement [Member] Estimated Fair Value [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Interest-rate swap agreements with customers. Interest Rate Swap Agreements With Customers [Member] Interest-rate Swap Agreements with Customers [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Derivative Asset, Notional Amount Total notional amount of the Company's swaps 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 Number of Interest Rate Derivatives Held Number of interest-rate swap agreements Represents Description of Conditions Relating to Clearing of Interest rate Swaps. Description of Conditions Relating to Clearing of Interest rate Swaps Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets [Member] Other Assets [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative Liability, Fair Value, Gross Liability Liability Derivatives Hedging Designation [Axis] 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 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 gains (losses) on securities transferred from available-for-sale to held-to-maturity, Tax effect Allowance for Loan and Lease Loss, Recovery of Bad Debts Recoveries Provision for Loan and Lease Losses Residential Real Estate [Member] SFR Mortgage [Member] Consumer And Other Loans [Member] Consumer And Other Loans [Member] Consumer and Other Loans [Member] Dairy, livestock & agribusiness. Dairy Livestock And Agribusiness [Member] Dairy & Livestock and Agribusiness [Member] Small Business Administration Loans [Member] Small Business Administration Loans [Member] Small Business Administration [Member] Previously Reported [Member] Accounting Standards Update 2016-13 [Member] Impact of ASU 2016-13 Adoption [Member] Financing Receivable, Recorded Investment, Current Loans Not Past Due Financing Receivable, Recorded Investment, Nonaccrual Status Nonaccrual Financing Receivable, Recorded Investment, Past Due Total Past Due 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 Financing Receivable, 90 Days or More Past Due, Still Accruing Loans Past Due Over 89 Days Still Accruing Commercial real estate non owner occupied. Commercial Real Estate Non Owner Occupied [Member] Commercial Real Estate Non-owner Occupied [Member] Commercial real estate owner occupied. Commercial Real Estate Owner Occupied [Member] Commercial Real Estate Owner Occupied [Member] Construction non speculative. Construction Non Speculative [Member] Construction Non-speculative [Member] Construction speculative. Construction Speculative [Member] Construction Speculative [Member] Financing Receivables, 30 to 59 Days Past Due [Member] 30-59 Days Past Due [Member] Financing Receivables, 60 to 89 Days Past Due [Member] 60-89 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] 90+ Days Past Due [Member] Greater than 89 Days Past Due [Member] Nonaccrual financing receivables that are current. Financing Receivable Recorded Investment Current Nonaccrual Nonaccruing loans, current Financing receivable recorded investment nonaccrual. Financing Receivable Recorded Investment Nonaccrual Nonaccrual loans Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Non Performing Troubled Debt Restructured Loans [Member] Non Performing Troubled Debt Restructured Loans [Member] Nonperforming TDRs [Member] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications, Recorded Investment Ending balance Beginning balance Financing Receivable Modifications Recorded Investments Financing Receivable Modifications Recorded Investments Total TDRs Financing Receivables Impaired Troubled Debt Restructuring Payments Financing Receivables Impaired Troubled Debt Restructuring Payments Payoffs/payments, net and other Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Charge-offs The decrease in performing troubled debt restructurings financing receivables, because of the change in accrual status to nonaccrual. Financing Receivable Recorded Investment Troubled Debt Restructurings Non Accrual Status TDRs placed on nonaccrual status 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] Recorded investment in collateral dependent loans on real estate. Recorded Investment In Collateral Dependent Loans On Real Estate Real Estate Recorded investment in collateral dependent loans on other financial instruments. Recorded Investment In Collateral Dependent Loans On Other Financial Instruments Other Number Of Instruments Dependent On Collateral. Number Of Instruments Dependent On Collateral Number of Loans Dependent on Collateral Recorded investment in collateral dependent loans on business assets. Recorded Investment In Collateral Dependent Loans On Business Assets Business Assets Financing Receivable, Troubled Debt Restructuring [Abstract] Financing Receivable, Modifications, Number of Contracts Share-based Compensation Stock-based compensation Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Gain (Loss) on Sale of Assets and Asset Impairment Charges Gain on sale of building, net Provision for Other Credit Losses (Recapture of) provision for credit losses Net Cash Provided by (Used in) Investing Activities [Abstract] Cash Flows from Investing Activities Net Cash Provided by (Used in) Investing Activities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Proceeds from maturity of investment securities available-for-sale Payments for proceeds from interest earning assets. Payments For Proceeds from Interest Earning Assets Net change in interest-earning balances from depository institutions Proceeds from Life Insurance Policy Proceeds from BOLI death benefit Payments for (Proceeds from) Loans and Leases Payments to Acquire Property, Plant, and Equipment Purchase of premises and equipment Payments to Acquire Held-to-maturity Securities Purchases of investment securities held-to-maturity Proceeds from Sale of Other Real Estate Proceeds from sales of other real estate owned 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 Payments to Acquire Debt Securities, Available-for-sale Purchases of investment securities available-for-sale Proceeds from Sale of Buildings Proceeds from sale of building, net of selling costs Net Cash Provided by (Used in) Financing Activities [Abstract] Cash Flows from Financing Activities Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Summary of pledged assets not separately reported on statement of financial position Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Common Share Reconciliation Fair Value, by Balance Sheet Grouping [Table Text Block] Estimated Fair Value of Financial Instruments 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 Derivative Instruments, Gain (Loss) [Table Text Block] Effect of Derivative Instruments on Consolidated Statement of Earnings Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Fair Value of Derivative Instruments Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of Components of Other Comprehensive Income 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 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 Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Future lease payments required for leases that have initial or remaining non-cancelable lease terms Disaggregation of Revenue [Table Text Block] Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606 Schedule Of Description Of Company [Table] Schedule Of Description Of Company [Table] Schedule Of Description Of Company [Table] Schedule Of Description Of Company [Line Items] Schedule Of Description Of Company [Line Items] Schedule Of Description Of Company [Line Items] Number of inactive subsidiaries. Number Of Inactive Subsidiaries Number of inactive subsidiaries Bank operated banking centers number. Bank Operated Banking Centers Number Bank operated banking centers Bank operated wealth management offices, number. Bank Operated Wealth Management Offices Number Bank operated trust office locations, number Number of loan production office. Number Of Loan Production Office Number of loan production office Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Collateralized Mortgage Obligations [Member] CMO/REMIC - Residential [Member] CMO/REMIC [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Other Debt Obligations [Member] Other Securities [Member] US Government Agencies Debt Securities [Member] Government Agency/GSE [Member] US States and Political Subdivisions Debt Securities [Member] Municipal Bonds [Member] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Held to maturity securities portfolio percentage. Held To Maturity Securities Portfolio Percentage Total Percent, Held-to-maturity Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Holding Gain, Available-for-sale Available for sale securities portfolio, percentage. Available For Sale Securities Portfolio Percentage Total Percent, Available-for-sale Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Gross Unrealized Holding Gain, Held-to-maturity Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Holding Loss, Available-for-sale Investment Schedule [Abstract] Investment Income [Table] Investment Income [Table] Debt Security Category [Axis] Debt Security Category [Axis] Available-for-sale Securities [Member] Investment securities available-for-sale [Member] Held-to-maturity Securities [Member] Investment securities held-to-maturity [Member] Net Investment Income [Line Items] Net Investment Income [Line Items] Interest and Dividend Income, Securities, Operating Total investment income Interest Income, Securities, Operating, Taxable Taxable Interest Income, Securities, Operating, Tax Advantaged Tax-advantaged Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax Net change, Tax effect Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax Net change in fair value recorded in accumulated OCI, Before-tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Net change in fair value recorded in accumulated OCI, After-tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax Net change in fair value recorded in accumulated OCI, Tax effect Offsetting [Abstract] Offsetting Assets Liabilities [Table] Offsetting Assets Liabilities [Table] Offsetting Assets Liabilities [Table] Offsetting Assets Liabilities [Line Items] Offsetting Assets Liabilities [Line Items] Offsetting Assets Liabilities [Line Items] Derivative, Collateral, Right to Reclaim Securities Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Derivative Asset, Fair Value, Amount Not Offset Against Collateral Financial assets, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets Derivative Asset, Fair Value, Amount Offset Against Collateral Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount Derivative Liability, Fair Value, Amount Not Offset Against Collateral Financial liabilities, Gross Amounts Recognized in the Condensed Consolidated Balance Sheets Derivative Liability, Fair Value, Amount Offset Against Collateral Financial liabilities, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Net Amount Derivative Asset, Collateral, Obligation to Return Cash, Offset Financial assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets Derivative, Collateral, Obligation to Return Cash Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Collateral Pledged Derivative, Collateral, Obligation to Return Securities Financial assets, Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Securities Sold under Agreements to Repurchase [Member] Repurchase Agreements [Member] Class of Stock [Axis] Class of Stock [Domain] Assets and Liabilities, Lessee [Abstract] Lease Assets and Liabilities Operating Lease, Right-of-Use Asset Operating Lease, Liability, Noncurrent Total lease liabilities Operating Lease, Expense Operating lease expense Sublease Income Sublease income Lease, Cost Total lease expense Lease Other Information [Abstract] Other Information Operating Lease, Payments Operating cash outflows from operating leases, net Lease Term And Discount Rate [Abstract] Lease Term and Discount Rate Operating Lease, Weighted Average Remaining Lease Term Weighted average remaining lease term (years) Operating Lease, Weighted Average Discount Rate, Percent Weighted average discount rate Operating Leases, Future Minimum Payments, Remainder of Fiscal Year Operating Leases, Future Minimum Payments, Due in Two Years 2022 Operating Leases, Future Minimum Payments, Due in Three Years 2023 Operating Leases, Future Minimum Payments, Due in Four Years 2024 Operating Leases, Future Minimum Payments, Due in Five Years 2025 Operating Leases, Future Minimum Payments, Due Thereafter Thereafter Operating Leases, Future Minimum Payments Due Total future lease payments Operating Lease, Liability Present value of lease liabilities Disaggregation of Revenue [Table] Accounting Standards Update 2014-09 [Member] Accounting Standards Update 201409 Not Adopted [Member] Accounting Standards Update 2014-09 Not Adopted [Member]