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This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Savings and money market Deposits, Savings Deposits Before Tax Other Comprehensive Income (Loss), before Tax [Abstract] Purchases of bank-owned life insurance Payment to Acquire Life Insurance Policy, Investing Activities Loans serviced for others Loans Serviced For Others Loans Serviced For Others Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Allowance for credit losses Beginning balance Ending balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Document Period End Date Document Period End Date Central Pacific Bank Subsidiaries [Member] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Net unrealized losses on AFS investment securities arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Due in one year or less (in percent) Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One Interest rate lock and forward sale commitments Interest Rate Lock and Forward Sale Commitment [Member] Interest Rate Lock and Forward Sale Commitment [Member] LEASES Lessor, Operating Leases [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Pacific Coast Bankers' Bank ("PCBB") Pacific Coast Bankers' Bank ("PCBB") [Member] Pacific Coast Bankers' Bank ("PCBB") Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Fair Value of RSUs and PSUs That Vested During the Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Percentage modified in period to total financing receivables Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage EARNINGS PER SHARE Earnings Per Share [Text Block] Per common share data: Earnings Per Share [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Peer Group Issuers, Footnote 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Payments to Acquire Debt Securities, Available-for-Sale Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Fixed interest rate Derivative, Fixed Interest Rate Allocated ACL Collateral-Dependent Financing Receivable, Related Allowance Collateral-Dependent Financing Receivable, Related Allowance Current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Nonaccrual Loans Financing Receivable, Nonaccrual Due after ten years (in percent) Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, after Year 10 ALLOWANCE FOR CREDIT LOSSES AND RESERVE FOR OFF-BALANCE SHEET CREDIT EXPOSURES Allowance for Credit Losses [Text Block] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] U.S. Treasury and other government-sponsored 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of components of other comprehensive income (loss) Comprehensive Income (Loss) [Table Text Block] Interest and dividend income: Interest and Dividend Income, Operating [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Changes during the period: Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Weighted Average Grant Date Fair Value Period Increase (Decrease) [Abstract] Dilutive effect of share-based compensation arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Available-for-sale: Debt Securities, Available-for-Sale [Abstract] Off-Balance Sheet, Credit Loss, Liability [Roll Forward] Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Reduction in ROU liability Increase (Decrease) in Operating Lease Liability Class of 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Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] Expiration Date Trading Arrangement Expiration Date 2030 Long-Term Debt, Maturity, Year Four Hedging Relationship [Axis] Hedging Relationship [Axis] Gross Unrecognized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Junior subordinated debentures Subordinated Debt [Member] Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Fund Commitments Fund Commitments [Member] Fund Commitments Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Thereafter Lessor, Operating Lease, Payment to be Received, after Year Five Common stock, par value (in dollars per share) Common Stock, No Par Value Commercial mortgage Commercial Real Estate [Member] 2027 Lessor, Operating Lease, Payment to be Received, Year One Interest rate swap agreements Interest Rate Swap [Member] Thereafter Lessee, Operating Lease, Lease Liability Reduction, After Year Five Lessee, Operating Lease, Lease Liability Reduction, After Year Five SHORT-TERM BORROWINGS AND LONG-TERM DEBT Debt Disclosure [Text Block] Net loans and leases Financing Receivable, after Allowance for Credit Loss Common shares withheld to satisfy tax obligations related to share‑based compensation Payments For Repurchase Of Common Stock Under Share-Based Compensation Plans Payments For Repurchase Of Common Stock Under Share-Based Compensation Plans PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Loans held for sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Thereafter Long-Term Debt, Maturity, after Year Five Loans, weighted average discount rate, percent Finance Lease, Weighted Average Discount Rate, Percent Cash dividends paid Dividends, Common Stock, Cash Total equity Beginning balance Ending balance Equity, Attributable to Parent 2028 Other Commitment, to be Paid, Year Two Repurchases of common stock and other related costs Payments for Repurchase of Common Stock and Other Related Costs The cash outflow to reacquire common stock during the period and other related costs. Share-based compensation APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition Other Other Noninterest Income Other noninterest income that is not separately presented in any other noninterest income category. Assets Assets [Abstract] Without single maturity date (in percent) Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Without Single Maturity Date Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Without Single Maturity Date Schedule of recorded investment in loans and leases, by class and credit indicator Financing Receivable Credit Quality Indicators [Table Text Block] Legal and professional services Professional Fees Insider Trading Policies and Procedures [Line Items] Deferred income tax Deferred Income Tax Expense (Benefit) Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Antidilutive securities excluded from the dilutive share calculation (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Entity Central Index Key Entity Central Index Key Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] CONTINGENT LIABILITIES AND OTHER COMMITMENTS Legal Matters and Contingencies [Text Block] 2026 (remainder) Long-Term Debt, Maturity, Remainder of Fiscal Year Net unrealized losses arising during the period Other comprehensive (loss) income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Investment, Name [Axis] Investment, Name [Axis] Derivative Financial Instruments Designated as Hedging Instruments Designated as Hedging Instrument [Member] Outstanding balance Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price Weighted Average Yield Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity [Abstract] Basis spread on variable rate Interest Rate Debt Instrument, Basis Spread on Variable Rate Variable Rate [Domain] Variable Rate [Domain] Accum. Other Comp. Loss AOCI Attributable to Parent [Member] Income from fiduciary activities Gain (Loss) from Price Risk Management Activity All Individuals All Individuals [Member] Carrying amount of the hedged assets Hedged Asset, Fair Value Hedge Changes in Level 3 assets and liabilities measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Collateralized loan obligations Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Collateralized Loan Obligations Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Collateralized Loan Obligations Less: Amortization of unrealized losses on investment securities transferred to HTM Tax effect OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), Tax Schedule of Financing Receivable Portfolio Segments Schedule of Financing Receivable Portfolio Segments [Table Text Block] Schedule of Financing Receivable Portfolio Segments Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] MORTGAGE SERVICING RIGHTS Intangible Asset [Text Block] Fair market value Finite-Lived Intangible Assets, Fair Value Disclosure Statement [Line Items] Statement [Line Items] Total assets Assets Undiscounted Cash Flows Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Defined Benefit Plan [Table] Defined Benefit Plan [Table] Mortgage revenue bonds Mortgage Revenue Bonds [Member] Mortgage revenue bonds (MRBs) are tax-exempt bonds that state and local governments issue through housing finance agencies (HFAs) to help fund below-market-interest-rate mortgages for first-time qualifying homebuyers. Extended Maturity Extended Maturity [Member] Total interest expense Interest Expense, Operating Additional disclosures Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Expected future benefit payments in the next twelve months Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax SHARE-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Fair Value Of Financial Assets And Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Without single maturity date Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Net occupancy Occupancy, Net PEO PEO [Member] Commercial and Industrial Commercial and industrial Commercial and Industrial Portfolio Segment [Member] Class of financing receivables related to commercial, financial and agricultural financing receivables. 2028 Long-Term Debt, Maturity, Year Two Collateralized loan obligations Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Collateralized Loan Obligations Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Collateralized Loan Obligations Retirement Plan Type [Axis] Retirement Plan Type [Axis] Statutory retained earnings Statutory Retained Earnings Represents the amount of statutory retained earnings as at the end of the period. Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Number of AFS investment securities in an unrealized loss position Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Common stock repurchases under share-based compensation plans (in shares) Stock Repurchased During Period, Shares, Share-Based Payment Arrangement Stock Repurchased During Period, Shares, Share-Based Payment Arrangement Retained Earnings Retained Earnings [Member] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Amortization of net actuarial gain Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Increase (Decrease) in Shareholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Aging Analysis of Accruing and Non-Accruing Loans and Leases Financing Receivable, Past Due [Line Items] Corporate securities Corporate Debt Securities [Member] Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Schedule of carrying amount and estimated fair value of financial instruments Fair Value by Balance Sheet Grouping and Off Balance Sheet Risks [Table Text Block] Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) whether recognized or not in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition and the measurements of those instruments, assets and liabilities. Such disclosures about the financial instruments, assets and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value. Amortization Intangible Asset, Finite-Lived, Amortization Expense Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Three years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 2028 Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Two Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Two Lease Contractual Term [Domain] Lease Contractual Term [Domain] Additions Intangible Asset, Finite-Lived, Acquired Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Amortization of net actuarial gain Tax effect Reclassification from AOCI, Current Period, Tax Unused borrowings available Line of Credit Facility, Remaining Borrowing Capacity 2027 Lessee, Operating Lease, Lease Liability Reduction, Year One Lessee, Operating Lease, Lease Liability Reduction, Remainder of Fiscal Year Financial assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Up to value of shares repurchased Stock Repurchased During Period, Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Commercial - U.S. government-sponsored entities and agencies Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Investments in low income housing tax credit partnerships Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Investments in Low Income Housing Tax Credit Partnerships Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Investments in Low Income Housing Tax Credit Partnerships Net reclassification of loans to other real estate owned Transfer of Portfolio Loans and Leases to Other Real Estate Transfer of Portfolio Loans and Leases to Other Real Estate Thereafter Other Commitment, to be Paid, after Year Five Schedule of Maturities of Long-Term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Line Item in the Consolidated Balance Sheets Hedged Asset, Statement of Financial Position [Extensible Enumeration] Long -term debt, weighted average discount rate, percent Long-Term Debt, Weighted Average Interest Rate, at Point in Time Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Unrealized gain (loss) on interest rate locks Amount of Gain (Loss) Recognized in Earnings on Derivatives Derivative, Gain (Loss) on Derivative, Net Collateral [Axis] Collateral Held [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Amortized Cost of Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving Schedule of balance in the allowance for loan and lease losses and the recorded investment in loans and leases based on the impairment measurement methods, by class Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Aggregate fair value Aggregate fair value / Balance at the beginning of the period Aggregate fair value / Balance at the end of the period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Business Description and Basis of Presentation [Text Block] INVESTMENTS IN UNCONSOLIDATED SUBSIDIARIES Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Weighted-average prepayment speed assumption Measurement Input, Constant Prepayment Rate [Member] Forward Contracts Forward Contracts [Member] 12 Month or Longer, Unrecognized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss) Note [Text Block] Product and Service [Domain] Product and Service [Domain] EQUITY Class of Stock [Line Items] Other operating expense: Noninterest Expense [Abstract] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Amounts reclassified out of each component of accumulated other comprehensive income Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] 2029 Lessee, Operating Lease, Lease Liability Reduction, Year Three Lessee, Operating Lease, Lease Liability Reduction, Lessee, Operating Lease, Lease Liability Reduction, Year Three 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Other Commitments [Axis] Other Commitments [Axis] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Asset Derivatives Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Supplemental Executive Retirement Plan Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Total investment securities Investment securities Marketable Securities Provision for credit losses Provision for credit losses Provision (Credit) For Loan And Lease Losses Provision (Credit) For Loan And Lease Losses Fair Value as of Grant Date Award Grant Date Fair Value Schedule of investment securities in an unrealized loss position Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Stock repurchase program, remaining authorized repurchase amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Less Than 12 Months, Unrecognized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Redemption period Redemption Period Following Occurrence of Certain Events Represents the redemption period following the occurrence of certain events. Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total Revenues Equity in the earnings of unconsolidated entities Income (Loss) from Equity Method Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Derivatives Debt Securities, Derivatives, Fair Value Hedge, Held To Maturity [Member] Debt Securities, Derivatives, Fair Value Hedge, Held To Maturity Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Schedule of balances of assets and liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Investment securities: Marketable Securities [Abstract] Award Type [Domain] Award Type [Domain] 2026 (remainder) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Changes during the period: Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options Period Increase (Decrease) [Abstract] FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES Fair Value Disclosures [Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Asset Pledged as Collateral Asset Pledged as Collateral [Member] Affordable Housing Program Status [Domain] Affordable Housing Program Status [Domain] Affordable Housing Program Status [Domain] Total Lessor, Operating Lease, Payment to be Received Non-cash lease expense Other Noncash Expense, Leases Other Noncash Expense, Leases ACL Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest Other assets Other Assets Other service charges and fees Other Service Charges and Fees [Member] Other Service Charges and Fees [Member] Accruing Loans 30 - 59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Legal Entity [Axis] Legal Entity [Axis] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Other Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Other Investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership not specified elsewhere. Schedule of amounts reclassified out of each component of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Non-NEOs Non-NEOs [Member] Residential - U.S. government-sponsored entities and agencies Mortgage Backed Securities Residential U S Government Sponsored Entities [Member] Debt securities collateralized by real estate mortgage loans (mortgages), issued by Residential US government sponsored entities, such as Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac). Held-to-maturity: Debt Securities, Held-to-Maturity, Fair Value, Maturity [Abstract] Allowance for Credit Losses for Loans Credit Loss, Financial Instrument [Policy Text Block] Investment, Name [Domain] Investment, Name [Domain] LEASES Lessee, Operating Leases [Text Block] 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Collateral-Dependent Financing Receivable Collateral-Dependent Financing Receivable Collateral-Dependent Financing Receivable Collateralized Mortgage-Backed Securities Collateralized Mortgage-Backed Securities [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Schedule of the impact of derivative instruments and their location within the consolidated statements of income Derivative Instruments, Gain (Loss) [Table Text Block] ALLOWANCE FOR LOAN AND LEASE LOSSES ALLOWANCE FOR LOAN AND LEASE LOSSES Lease Liability Expense Lease Liability Expense [Abstract] Lease Liability Expense [Abstract] Award Type [Axis] Award Type [Axis] 2026 (remainder) Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Derivatives - Interest rate contracts Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Retained earnings Retained Earnings (Accumulated Deficit) Consumer Consumer Portfolio Segment [Member] Common shares withheld to satisfy tax obligations related to share‑based compensation Stock Repurchased During Period, Value, Share-Based Payment Arrangement Stock Repurchased During Period, Value, Share-Based Payment Arrangement Product and Service [Axis] Product and Service [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Operating Lease, Lease Income Operating Lease, Lease Income [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Operating lease cost Operating Lease, Cost Year-to-date gross charge-offs, four years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff C P B Capital Trust I V C P B Capital Trust I V [Member] Represents information pertaining to CPB Capital Trust IV. Derivative Contract [Domain] Derivative Contract [Domain] Total liabilities and equity Liabilities and Equity Variable lease cost Variable Lease, Cost Stock Option Share-Based Payment Arrangement, Option [Member] Amortization of net actuarial gain Amortization of net actuarial gain Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax SERPs Supplemental Employee Retirement Plan [Member] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Additional paid-in capital Additional Paid in Capital Dividend income on FRB and FHLB stock Dividends on Federal Home Loan Bank Stock Amount of paid and unpaid Federal Home Loan Bank stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Name Awards Close in Time to MNPI Disclosures, Individual Name 2031 Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Five Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Five Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Noninterest-bearing demand Noninterest Bearing Demand The amount of money in accounts that do not bear interest and that the depositor is entitled to withdraw at any time without prior notice. Includes both domestic and foreign depositors. 2025 Repurchase Plan 2025 Repurchase Plan [Member] 2025 Repurchase Plan Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Schedule of Defined Benefit Plans Disclosures Schedule of Defined Benefit Plans Disclosures [Table Text Block] Measurement input Weighted average prepayment speed assumption Debt Instrument, Measurement Input Preferred stock, no par value, authorized 1,000,000 shares; issued and outstanding: none as of June 30, 2026 and December 31, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Amortization of net actuarial gain Reclassification adjustments from AOCI Net of tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Interest expense paid Interest Paid, Excluding Capitalized Interest, Operating Activity Hedging Designation [Axis] Hedging Designation [Axis] Accruing Loans 60 - 89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Proceeds from sale of portfolio company Proceeds from Divestiture of Businesses and Interests in Affiliates Assets, fair value disclosure Assets, Fair Value Disclosure Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Off-balance sheet financial instruments Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability Schedule of Credit Losses Related to Impaired Financing Receivables Schedule of Credit Losses Related to Impaired Financing Receivables [Table Text Block] Tabular disclosure of the activity in the allowance for credit losses related to impaired financing receivables, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged-off. Debt Instrument [Line Items] Debt Instrument [Line Items] Loans, including fees Interest and Fee Income, Financing Receivable Additional Paid-In Capital Additional Paid-in Capital [Member] Amortization of unrealized losses on investment securities transferred to held-to-maturity Amortization of Unrealized Losses on Securities Transferred to Held to Maturity, Net of Tax Amortization of Unrealized Losses on Securities Transferred to Held to Maturity, Net of Tax Due after five years through ten years (in percent) Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 Number of HTM investment securities in an unrealized loss position Debt Securities, Held-to-Maturity, Unrealized Loss Position, Number of Positions Debt Securities, Held-to-Maturity, Unrealized Loss Position, Number of Positions 2031 Lessor, Operating Lease, Payment to be Received, Year Five Other service charges and fees Other Service Charges and Fees The noninterest income derived from the following: (1) fees and services from debit card services; (2) fees charged depositors for use of automated teller machines; (3) merchant service activity; (4) annual fees from loans; (5) other fees and service charges. Out-of-Scope Revenue Not from Contract with Customer Savings and money market Interest Expense Savings and Money Market Aggregate amount of interest expense on savings and money market deposit accounts. Accrued interest receivable Interest Receivable Name Trading Arrangement, Individual Name Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Supplemental disclosure of non-cash information: Supplemental Non-Cash Flow Information [Abstract] Supplemental Non-Cash Flow Information Company Selected Measure Amount Company Selected Measure Amount Share-based compensation (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Net increase in cash surrender value of bank-owned life insurance Life Insurance, Corporate or Bank Owned, Change in Value 2031 Long-Term Debt, Maturity, Year Five Mortgage banking income Mortgage Banking The noninterest income derived from mortgage banking activities. Includes fees earned from servicing held in portfolio loans as well as loans sold in the secondary market, gains and losses on the sale of mortgage loans to investors, activities related to mortgage servicing rights, and gains and losses resulting from mortgage-related derivative financial instruments. Weighted-average remaining lease term - operating leases Operating Lease, Weighted Average Remaining Lease Term Off-balance sheet financial instruments, Notional Amount Fair Value Disclosure, off-Balance-Sheet Risks, Face Amount, Liability Non-PEO NEO Non-PEO NEO [Member] Total other operating expense Noninterest Expense Award Timing Method Award Timing Method [Text Block] Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] 2028 Lessor, Operating Lease, Payment to be Received, Year Two Available for sale accrued interest receivable Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Without single maturity date Debt Securities, Held-to-Maturity, Maturity, without Single Maturity Date, Fair Value Share-Based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Net income Net income Net income Net Income (Loss) Attributable to Parent CPB Statutory Trust V ("Trust V") Trust V [Member] Trust V [Member] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Service charges on deposit accounts Service Charges on Deposit Accounts Includes charges to depositors for: (1) account maintenance; (2) minimum balance; (3) excessive checks/transactions; (4) checks drawn on no minimum accounts; (5) withdrawals from non-transaction accounts; (6) early closing fees; (7) early withdrawal of time deposits; (8) inactive/dormant account fees; (9) NSF fees; (10) stop payment fees; (11) certifying checks; and (12) accumulating/disbursing funds in IRAs or Keogh Plan accounts when not handled by the bank. Excludes ATM or remote service unit fees. Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Restatement Determination Date: Restatement Determination Date [Axis] Long term borrowings, interest rate Long-Term Debt, Interest Rate, Stated Percentage Long-Term Debt, Interest Rate, Stated Percentage Schedule of changes in each component of AOCI, net of tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Amortization of unrealized losses on investment securities transferred to held-to-maturity OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), after Tax Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Deposits: Interest Expense, Deposits [Abstract] Other operating income: Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Net change in fair value of investment securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Statistical Measurement [Domain] Statistical Measurement [Domain] Trust preferred securities issued value Trust Preferred Securities Issued Value The value of trust preferred securities issued during the period. Document Fiscal Year Focus Document Fiscal Year Focus Risk participation agreements Risk Participation Agreement [Member] Risk Participation Agreement Cash pledged as collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Preferred stock, par value (in dollars per share) Preferred Stock, No Par Value Activity of nonvested shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Total deposits Deposits Common stock, no par value, authorized 185,000,000 shares; issued and outstanding: 25,806,418 as of June 30, 2026 and 26,374,967 as of December 31, 2025 Common Stock, Value, Issued 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Schedule of activity of restricted stock awards and units Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Depreciation and amortization of premises and equipment Depreciation, Amortization and Accretion, Net Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Schedule of investment in unconsolidated subsidiaries Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block] Communication Communication Restatement Determination Date Restatement Determination Date Investment in unconsolidated entities Total Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Due after five years through ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Other Other Noninterest Expense Service charges on deposit accounts Service Charges on Deposit Accounts [Member] Service Charges on Deposit Accounts [Member] Amendment Flag Amendment Flag Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Investments [Domain] Investments [Domain] Total held-to-maturity securities Debt Securities, Held-to-Maturity, Weighted Average Yield Originations of loans held for sale Payment for Origination, Loan, Mortgage, Held-for-Sale Affordable Housing Program Status [Axis] Affordable Housing Program Status [Axis] Affordable Housing Program Status Federal Home Loan Bank long-term advances Federal Home Loan Bank Advances [Member] CPB Capital Trust IV ("Trust IV") Trust IV [Member] Trust IV [Member] Schedule of activity in the allowance, by class Financing Receivable, Current, Allowance for Credit Loss [Table Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Termination of Operations Center Lease Termination Of Operations Center Lease [Member] Termination Of Operations Center Lease Liability Derivatives Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Notional amount Notional Amount Derivative, Notional Amount Basic weighted average shares outstanding (in shares) Weighted average shares outstanding - basic Weighted Average Number of Shares Outstanding, Basic Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Net change in fair value of investment securities: OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax [Abstract] 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Recorded investment in the loans and leases, by class and credit indicator Financing Receivable, Credit Quality Indicator [Line Items] Interest-bearing deposits in other financial institutions Interest-Bearing Deposits in Banks and Other Financial Institutions Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Total other operating income Noninterest Income In-Scope Revenue from Contract with Customer, Including Assessed Tax Total Past Due and Nonaccrual Financing Receivable, Recorded Investment, Past Due and Nonaccrual Status Recorded Investment in financing receivables that are past due and on nonaccrual status on the balance sheet date. PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS Defined Benefit Plan Disclosure [Line Items] LOANS AND CREDIT QUALITY Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Total Lessee, Operating Lease, Lease Liability Reduction Lessee, Operating Lease, Lease Liability Reduction Time Time Deposits Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Debt Securities, Held-to-Maturity [Table] Debt Securities, Held-to-Maturity [Table] Line of Credit, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Loans, net of allowance for credit losses Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Impact of Other Recently Issued Accounting Pronouncements on Future Filings New Accounting Pronouncements, Policy [Policy Text Block] Loss on disposal of premises and equipment Gain (Loss) on Disposition of Property Plant Equipment Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax Summary of available for sale and held to maturity investment securities Summary Investment Holdings [Table Text Block] Long-term debt Long term borrowings Long-Term Debt Two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Less Than 12 Months, Unrecognized Losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Net cash (used in) provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Standby letters of credit and financial guarantees written Standby Letters Of Credit And Financial Guarantees [Member] An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation and an agreement (contract) that requires the guarantor to make payments to the guaranteed party based on another entity's failure to pay specified obligations, such as debt, to a lender. EQUITY Equity [Text Block] Mortgage loans hedged Derivative, Amount of Hedged Item Security Exchange Name Security Exchange Name Number of periods interest can be deferred Debt Instrument, Number of Consecutive Quarterly Periods for which Interest Payments Can be Deferred without Default or Penalty Represents the number of consecutive quarterly periods for which payments of interest can be deferred without default or penalty. JAM FINTOP JAM FINTOP [Member] JAM FINTOP Loans Past Due Financing Receivable, before Allowance for Credit Loss Net redemption (purchases) of FRB and FHLB stock (Purchase) Proceeds from Redemption of FHLB Stock, Net Represents the cash inflow from proceeds from redemption of FLHB stock. 12 Month or Longer, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Federal Home Loan Bank Federal Home Loan Bank Certificates and Obligations (FHLB) [Member] Schedule of Investments [Table] Schedule of Investments [Table] Income from bank-owned life insurance Income (Loss) on Bank Owned Life Insurance Income (Loss) on Bank Owned Life Insurance Total Fair Value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Long-term debt Interest Expense, Long-Term Debt Net change in fair value of investment securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Purchases of loan portfolios Payments to Acquire Finance Receivables Time Interest Expense, Time Deposits Computer software Computer Software Expense The amount of expenses incurred in the period for information technology and data processing products. SERP Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] 2029 Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Three Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Three Total Long-Term Debt, Gross Residential mortgage Residential Mortgage [Member] Federal Home Loan Bank Borrowings Federal Home Loan Bank Borrowings [Member] Asset Class [Domain] Asset Class [Domain] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted average shares outstanding (in shares) Weighted average shares outstanding - diluted Weighted Average Number of Shares Outstanding, Diluted LOANS AND LEASES Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Loans in the process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Loans sold originally held for investment Loans And Leases Receivable, Number Of Loans Sold Loans And Leases Receivable, Number Of Loans Sold Loans Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Underlying Security Market Price Change Underlying Security Market Price Change, Percent DERIVATIVES Derivative Instruments and Hedging Activities Disclosure [Text Block] Gross Unrecognized Losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss Total Lessee, Operating Lease, Liability, Undiscounted Excess Amount FHLB advances and other short-term borrowings Short-Term Debt Fair Value Derivative Liability, Subject to Master Netting Arrangement, before Offset Provision for off-balance sheet credit exposures Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] 2026 (remainder) Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Due Remainder Of The Year Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Due Remainder Of The Year Residential - Non-government agencies Mortgage-backed Securities, Issued by Private Enterprises, Residential [Member] Mortgage-backed Securities, Issued by Private Enterprises, Residential [Member] Intangible Asset, Goodwill and Other [Abstract] Letters of Credit, outstanding Letters of Credit Outstanding, Amount Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Residential - Non-government agencies Mortgage Backed Securities Residential Non Government Agencies [Member] Debt securities collateralized by real estate mortgage loans (mortgages), issued by Residential Non government agencies. Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Total Lessee, Operating Lease, Liability, to be Paid Proceeds from sales of loans held for sale Proceeds from Sale, Loan, Held-for-Sale Other Commitments Other Commitments [Table Text Block] Year-to-date gross charge-offs, two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Collateral [Domain] Collateral Held [Domain] Non-vested RSUs and PSUs, beginning of period (in dollars per share) Non-vested RSUs and PSUs, end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] Interest rate lock commitments Interest Rate Lock Commitments [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Net transfer of portfolio loans to loans held for sale Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale Principal payments received Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Loans held for sale Loans Held-for-sale [Member] Loans Held-for-sale [Member] Demand Interest Expense, Demand Deposit Accounts Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Schedule of information used to compute basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] SEGMENT INFORMATION Segment Reporting [Text Block] Proceeds from maturities, prepayments and calls of investment securities available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Investment Type [Axis] Investment Type [Axis] Less Than 12 Months, Fair Value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Investment securities Investments, Fair Value Disclosure Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Investments in common securities of statutory trusts Trust Preferred Investments The amount invested in preferred stocks issued by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Federal National Mortgage Association Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] Liabilities, fair value disclosure Financial Liabilities Fair Value Disclosure Financing receivable accrued interest receivable Financing Receivable, Accrued Interest, after Allowance for Credit Loss Other liabilities Other Liabilities Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Common stock, authorized (in shares) Common Stock, Shares Authorized Tax credits recognized in income tax expense Income Tax Credits and Adjustments Component of AOCI Accumulated Other Comprehensive Income (Loss) [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Asset Retirement Obligation Disclosure [Abstract] Exercise Price Award Exercise Price Debt securities held-to-maturity, at amortized cost; fair value of: $474,928 as of June 30, 2026 and $495,845 as of December 31, 2025 Amortized Cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Recurring basis Fair Value, Recurring [Member] Amount authorized under the Repurchase Plan Share Repurchase Program, Authorized, Amount Contributions to unconsolidated entities Contributions to Unconsolidated Subsidiaries This element represents Contributions to unconsolidated subsidiaries. Document Quarterly Report Document Quarterly Report Amortization of mortgage servicing rights Amortization and Impairment of Intangible Assets Finite lived The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets, and the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] States and political subdivisions US States and Political Subdivisions Debt Securities [Member] Special Mention Special Mention [Member] Year-to-date gross charge-offs, three years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Accrued interest payable Interest Payable Repayments of long-term debt Repayments of Long-Term Debt 2029 Other Commitment, to be Paid, Year Three Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Lease Contractual Term [Axis] Lease Contractual Term [Axis] Equity method investments Equity Method Investments Equity Component [Domain] Equity Component [Domain] Measurement Input Type [Domain] Measurement Input Type [Domain] Adoption Date Trading Arrangement Adoption Date Proceeds from sale of Visa Class B common stock Proceeds from Issuance or Sale of Equity Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Lease liabilities Operating Lease, Liability Held to maturity debt securities, fair value Fair Value Total held-to-maturity securities Debt Securities, Held-to-Maturity, Fair Value Taxable investment securities Interest Income, Securities, Operating, Taxable Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Adjusted balance at beginning of period Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Number of shares authorized for repurchase (in shares) Share Repurchase Program, Authorized, Number of Shares DERIVATIVES Derivative Instruments, Gain (Loss) [Line Items] Subordinated Debentures Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Noncurrent Schedule Of Loan Purchase Activity By Class Schedule Of Loan Purchase Activity By Class [Table Text Block] Schedule Of Loan Purchase Activity By Class Premium Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Total rental income recognized Operating Lease, Lease Income Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Liabilities Back-To-Back Swap Agreements, Pay Variable/Receive Fixed [Member] Back-To-Back Swap Agreements, Pay Variable/Receive Fixed Net change in fair value of investment securities: OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax [Abstract] Weighted average Weighted Average [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Substandard Substandard [Member] Deposits in other financial institutions Interest Income, Deposits with Financial Institutions Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of gross carrying value and accumulated amortization related to intangible assets Intangible Asset, Finite-Lived [Table Text Block] Intangible Asset, Finite-Lived, Acquired [Table] Intangible Asset, Finite-Lived, Acquired [Table] Other Commitments [Domain] Other Commitments [Domain] Due after ten years (in percent) Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 City Area Code City Area Code Name Forgone Recovery, Individual Name C P B Capital Trust V C P B Capital Trust V [Member] Represents information pertaining to CPB Capital Trust V. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted Average Grant Date Fair Value Per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] 2030 Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Four Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year Four Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Entity [Domain] Entity [Domain] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Total interest income Interest and Dividend Income, Operating Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Due after ten years Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Net change in unrealized (loss) gain on investment securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax Assets Back-To-Back Swap Agreements, Receive Fixed/Pay Variable [Member] Back-To-Back Swap Agreements, Receive Fixed/Pay Variable Net unrealized losses arising during the period Other Comprehensive Income (Loss), before Reclassifications, before Tax Net increase (decrease) in deposits Increase (Decrease) in Deposits Measurement Basis [Axis] Measurement Basis [Axis] Mortgage loans foreclosure, number sold Mortgage Loans Foreclosure, Number Sold Mortgage Loans Foreclosure, Number Sold Other Other [Member] Other [Member] Net unrealized gains (losses) on AFS investment securities arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Net unrealized gains on investment securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Noncontrolling Interest [Member] Funded commitments, LIHTC Federal Home Loan Bank, Affordable Housing Program Obligation Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One 2027 Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Year One Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Remainder of Fiscal Year Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Investment Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Net unrealized losses on AFS investment securities arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Schedule of fair market value and key assumptions used in determining the fair market value of our mortgage servicing rights Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] 2028 Lessee, Operating Lease, Lease Liability Reduction, Year Two Lessee, Operating Lease, Lease Liability Reduction, Year Two Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Derivatives Not in Cash Flow Hedging Relationship Cash Flow Hedging [Member] U.S. Mainland Consumer - Dealer Consumer Automobile Loan [Member] Consumer Automobile Loan Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] 2029 Long-Term Debt, Maturity, Year Three Amortization of unrealized losses on investment securities transferred to HTM Accumulated Net Unrealized Loss on Held to Maturity Securities [Member] Accumulated Net Unrealized Loss on Held to Maturity Securities 12 Month or Longer, Unrecognized Losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Cash paid during the period for: Cash Paid During Period for [Abstract] No definition available. Premises and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Interest cost Defined Benefit Plan, Interest Cost 2031 Other Commitment, to be Paid, Year Five LIHTC Low Income Housing Tax Credit [Member] Low Income Housing Tax Credit Financial Instruments [Domain] Financial Instruments [Domain] Tax Effect Other Comprehensive Income (Loss), Tax [Abstract] Time deposits, weighted average discount rate, percent Time Deposits, Weighted Average Discount Rate, Percent Time Deposits, Weighted Average Discount Rate, Percent Four years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Interest-bearing demand Interest Bearing Demand The amount of money in accounts that bear interest and that the depositor is entitled to withdraw at any time without prior notice. Includes both domestic and foreign depositors. Underlying Securities Award Underlying Securities Amount Estimated Fair Value Estimate of Fair Value Measurement [Member] REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue from Contract with Customer [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] 2026 Repurchase Plan 2026 Repurchase Plan [Member] 2026 Repurchase Plan Weighted-average discount rate - operating leases Operating Lease, Weighted Average Discount Rate, Percent Net change in fair value of investment securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Amortized cost basis of loans modified Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Home Equity Home Equity Loan [Member] Beginning balance Ending balance Off-Balance-Sheet, Credit Loss, Liability Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Lease, Cost Lease, Cost [Table Text Block] All Trading Arrangements All Trading Arrangements [Member] Less than 12 months, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Current Fiscal Year End Date Current Fiscal Year End Date Back-to-back swap agreements Back-To-Back Swap Agreements [Member] Back-To-Back Swap Agreements Due after one year through five years (in percent) Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five 2026 (remainder) Other Commitment, to be Paid, Remainder of Fiscal Year Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Provision (credit) for credit losses on loans Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Common stock repurchased and retired and other related costs (in shares) Shares of common stock repurchased (in shares) Stock Repurchased During Period, Shares Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Cash dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Schedule of amortized cost and estimated fair value of investment securities by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Proceeds from bank-owned life insurance death benefits Proceeds from Life Insurance Policy Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Measure: Measure [Axis] Mortgage servicing rights Mortgage Servicing Rights [Member] A contractual agreement where the right or rights to service an existing mortgage are sold by the original lender to another party who specializes in the various functions of servicing mortgages. Tax-exempt investment securities Interest Income, Securities, Operating, Tax Exempt Equity Components [Axis] Equity Components [Axis] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Entity Small Business Entity Small Business Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Federal Reserve discount window line of credit Federal Reserve Bank Advances [Member] Amount called during period Derivative, Amount Called During Period Derivative, Amount Called During Period Net interest income Interest Income (Expense), Operating MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Document Type Document Type Due after ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Assets and liabilities measured at fair value Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Common securities issued to company Common Securities Issued to Parent Value The value of common securities issued to the parent during the period. ACL Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Schedule of Subordinated Borrowing Schedule of Subordinated Borrowing [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Changes in each component of AOCI, net of tax Accumulated Other Comprehensive Income (Loss) (Roll Forward) No definition available Weighted Average Yield Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity [Abstract] Pledged Status [Domain] Pledged Status [Domain] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Contingent liabilities and other commitments (see Note 18) Commitments and Contingencies Net change in fair value of investment securities: OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Changes in other intangible assets Intangible Asset, Finite-Lived [Roll Forward] Executive Category: Executive Category [Axis] Thereafter Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Due After Year Five Lessee, Operating Lease, Liability, Undiscounted Excess Amount, Due After Year Five JAM FINTOP Banktech Fund, L.P. JAM FINTOP Banktech Fund, L.P. [Member] JAM FINTOP Banktech Fund, L.P. Other comprehensive income (loss) Other Comprehensive Income (Loss), Tax Liabilities and Equity Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] 2030 Lessor, Operating Lease, Payment to be Received, Year Four Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Common stock repurchases under share repurchase program Stock Repurchased During Period Value and Other Related Costs Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury and the other related costs. Net gain on sales of residential mortgage loans Gain (Loss) on Sale of Loans and Leases PEO Name PEO Name Other Other Partnerships [Member] Other Partnerships Financial liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] 12 Month or Longer, Fair Value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Income taxes paid, net Income Tax Paid, before Refund Received Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Cash and due from financial institutions Cash and Due from Banks Schedule of aging of the recorded investment in past due loans and leases, by class Financing Receivable, Past Due [Table Text Block] Loans Not Past Due Financial Asset, Not Past Due [Member] Other Commitments [Line Items] Other Commitments [Line Items] Risk Participation Agreements Risk Participation Agreements [Member] Risk Participation Agreements Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Share-based compensation Share-Based Payment Arrangement, Noncash Expense Interest expense: Interest Expense, Operating and Nonoperating [Abstract] Salaries and employee benefits Labor and Related Expense Total lease cost Lease, Cost Number of AFS securities sold Debt Securities, Available-for-Sale, Number of Securities Sold Debt Securities, Available-for-Sale, Number of Securities Sold Loan payments, net Payments for (Proceeds from) Loans and Leases Proceeds from maturities, prepayments and calls of investment securities held-to-maturity Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Schedule of the location of all assets and liabilities associated with derivative instruments within the consolidated balance sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Commercial Mortgage Commercial Real Estate Loan [Member] Commercial Real Estate Loan [Member] Insider Trading Arrangements [Line Items] Gain (Loss) On Unrealized Losses On Derivative Instruments Gain (Loss) On Unrealized Losses On Derivative Instruments [Member] Gain (Loss) On Unrealized Losses On Derivative Instruments Bank-owned life insurance Bank Owned Life Insurance Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Distributions from unconsolidated entities Distribution From Unconsolidated Subsidiary Distribution From Unconsolidated Subsidiary Asset Pledged as Collateral without Right Asset Pledged as Collateral without Right [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Gross recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Amortization of unrealized losses on investment securities transferred to held-to-maturity at fair value Amortization of unrealized losses on investment securities transferred to held-to-maturity at fair value Amortization OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), before Tax Investments in affiliates Advances to Affiliate Year-to-date gross charge-offs, fiscal year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Forward sale commitments Interest Rate Forwards [Member] A forward interest rate contract is an over-the-counter contract between parties that determines the rate of interest, or the currency exchange rate, to be paid or received on an obligation beginning at a future start date. Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Without single maturity date Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, without Single Maturity Date FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Trust IV and Trust V Trust IV and Trust V [Member] Trust IV and Trust V Net tax expense from share-based compensation Excess Tax Benefit from Share-Based Compensation, Operating Activities1 Excess Tax Benefit from Share-Based Compensation, Operating Activities1 Lessor, Operating Lease, Payments to be Received, Maturity Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Pass Pass [Member] Schedule of loans and leases, excluding loans held for sale Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Decrease in ROU asset Increase (Decrease) In Operating Lease Asset Increase (Decrease) In Operating Lease Asset Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Real Estate Portfolio Segment Real Estate Portfolio Segment [Member] Real Estate Portfolio Segment [Member] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized DERIVATIVES Derivatives, Fair Value [Line Items] Weighted Average Yield Debt Securities, Available-for-Sale, Weighted Average Yield Commercial - U.S. government-sponsored entities and agencies Commercial Mortgage-Backed Securities [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs") Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs") [Member] Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs") Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] 2030 Lessee, Operating Lease, Lease Liability Reduction, Year Four Lessee, Operating Lease, Lease Liability Reduction, Year Four Total unfunded commitments Total unfunded commitments Other Commitment Secured by 1-4 Family Residential Properties 1-4 Family Residential Properties [Member] 1-4 Family Residential Properties Location of Gain (Loss) Recognized in Earnings on Derivatives Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Other real estate owned Real Estate Acquired Through Foreclosure 2031 Lessee, Operating Lease, Liability, to be Paid, Year Five Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Entity Filer Category Entity Filer Category Total Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Advertising Advertising Expense Long-Term Debt, Fiscal Year Maturity [Abstract] Long-Term Debt, Fiscal Year Maturity [Abstract] Interest-bearing demand and savings deposits Interest Bearing Demand and Savings Deposits The amount of money in accounts that bear interest and that the depositor is entitled to withdraw at any time without prior notice and the amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Derivative Financial Instruments Not Designated as Hedging Instruments Not Designated as Hedging Instrument [Member] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Deposits: Deposits [Abstract] 2027 Other Commitment, to be Paid, Year One Stock, Class of Stock [Table] Stock, Class of Stock [Table] Changes in the allowance Allowance for Loan and Lease Losses [Roll Forward] Entity Address, Address Line One Entity Address, Address Line One Lease liabilities arising from obtaining right-of-use lease assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Income tax expense Income Tax Expense (Benefit) Collateralized loan obligations Collateralized Loan Obligations [Member] Income from fiduciary activities Income from Fiduciary Activities [Member] Income from Fiduciary Activities [Member] Total Gross charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Lease Liabilities Lease Liability Reduction [Abstract] Lease Liability Reduction [Abstract] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Statement [Table] Statement [Table] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Fiscal year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Secured Overnight Financing Rate (SOFR) [Member]