Total, gross unrealized losses Available for Sale Securities and Held to Maturity Securities Gross Unrealized Loss Available for Sale Securities and Held to Maturity Securities Gross Unrealized Loss Net amortization of deferred fees/costs and premiums/discounts on loans Net (Accretion) Amortization of Deferred Fees and Discounts on Loans Net (Accretion) Amortization of Deferred Fees and Discounts on Loans Schedule of Notional Amount and Fair Value of Derivatives Designated and Not Designated as Hedging Instruments Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of Debt Securities, AFS and HTM Debt Securities, Available-for-Sale [Table Text Block] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Total commercial and industrial Commercial And Industrial [Member] Commercial And Industrial [Member] Award Timing Predetermined Award Timing Predetermined [Flag] 2026 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Net excess tax expense on stock compensation Tax Expense Benefit From Shared Based Compensation Tax expense benefit from shared based compensation. Net accretion of purchase accounting adjustments Banking and Thrift, Premium, Discount, and Intangible Asset, Year of Business Combination, Income before Tax, Increase (Decrease) Paycheck Protection Program Paycheck Protection Program [Member] Paycheck Protection Program Entity File Number Entity File Number Additional Paid-In Capital Additional Paid-in Capital [Member] Interest Rate Swap Interest Rate Swap [Member] Principal repayments on debt securities AFS Proceeds From Maturities, Repayments And Calls Of Debt Securities, FV-NI, Available-For-sale Proceeds From Maturities, Repayments And Calls Of Debt Securities, FV-NI, Available-For-sale Bank owned life insurance Bank Owned Life Insurance Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Leases [Abstract] Held-to-maturity, Total, Estimated Fair Value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Total, estimated fair value Available For Sale Securities And Held To Maturity Securities Estimated Fair Value Available For Sale Securities And Held To Maturity Securities Estimated Fair Value Fair Value Measurements Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Pledged Status [Axis] Pledged Status [Axis] Schedule of Book Value and Estimated Fair Value of Significant Financial Instruments Not Recorded at Fair Value Fair Value, by Balance Sheet Grouping [Table Text Block] Increase in cash surrender value of bank owned life insurance Bank Owned Life Insurance Income, Net Bank Owned Life Insurance Income, Net Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Held-to-maturity, 12 months or longer, Estimated Fair Value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Financial Liabilities: Liabilities, Fair Value Disclosure [Abstract] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Total other comprehensive (loss) income, net of tax Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax FHLB and FRB FHLB And FRB For Borrowing Capacity [Member] FHLB And FRB For Borrowing Capacity Allowance for credit losses on loans Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Gross Unrealized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Measurement Input Type [Domain] Measurement Input Type [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Decrease in other assets Increase (Decrease) in Other Operating Assets Consolidation Consolidation, Policy [Policy Text Block] Stock compensation Share-Based Payment Arrangement, Noncash Expense 2029 Finance Lease, Liability, to be Paid, Year Three Gross charge-offs Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Employee Stock Option Share-Based Payment Arrangement, Option [Member] Total excluding fair value hedge basis adjustment, allowance for securities credit losses Debt Securities, Available-For-Sale, Allowance For Credit Loss, Excluding Accrued Interest, Before Fair Value Hedge Cumulative Increase (Decrease) Debt Securities, Available-For-Sale, Allowance For Credit Loss, Excluding Accrued Interest, Before Fair Value Hedge Cumulative Increase (Decrease) Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Weighted-Average Discount Rate Leases, Weighted Average Discount Rate [Abstract] Leases, Weighted Average Discount Rate Income taxes Income Taxes Paid Accretion of unrealized loss on debt securities reclassified to HTM, tax expense Other Comprehensive Income Accretion Of Fair Value Adjustment On Held To Maturity Securities Tax Other Comprehensive Income Accretion Of Fair Value Adjustment On Held To Maturity Securities Tax Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Purchase of equity investments Payments to Acquire Equity Method Investments Cash dividend Dividends, Common Stock, Cash Measurement Frequency [Axis] Measurement Frequency [Axis] Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Other comprehensive (loss) income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Total liabilities and stockholders’ equity Liabilities and Equity Items measured on a recurring basis: Fair Value, Recurring [Member] Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Cover [Abstract] Cover [Abstract] Cash and due from banks Cash and Cash Equivalents, Fair Value Disclosure Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Employee Stock Ownership Plan Employee Stock Ownership Plan [Member] Employee Stock Ownership Plan Amortized Cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss Transfer of loans receivable to OREO Real Estate Owned, Transfer to Real Estate Owned Net loss attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Available-for-sale, Total, Estimated Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Schedule of Future Minimum Payments for Operating Leases Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Pledged Assets Schedule of Pledged Assets, Not Separately Reported on Statement of Financial Position [Table Text Block] Schedule of Pledged Assets, Not Separately Reported on Statement of Financial Position Treasury Stock Treasury Stock, Common [Member] Current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Investment Grade Internal Investment Grade [Member] Less: Unallocated common stock held by ESOP Common Stock Issued, Employee Trust, Deferred Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Operating lease liabilities Total lease liabilities Operating Lease, Liability U.S. government and agency obligations US Government Agencies Debt Securities [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount 90 Days or Greater Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Lease Liabilities Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Less: Unallocated ESOP shares (in shares) Weighted Average Number of Shares, Employee Stock Ownership Plan Shares Not Committed to be Released Amortization of ROU assets Finance Lease, Right-of-Use Asset, Amortization Income before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Schedule of Available For Sale Securities and Held To Maturity Securities [Table] Schedule of Available For Sale Securities and Held To Maturity Securities [Table] Schedule of Available For Sale Securities and Held To Maturity Securities [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Loss recognized on hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Measurement Input, Appraisal Adjustments Measurement Input, Appraisal Adjustments [Member] Measurement Input, Appraisal Adjustments [Member] (Increase) decrease in interest and dividends receivable Increase (Decrease) in Interest and Dividends Receivable Two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Gross charge-off originated in year five and prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Less: comprehensive loss attributable to non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total interest expense Interest Expense, Operating Comprehensive income attributable to OceanFirst Financial Corp. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Credit risk derivative liability, fair value, excluding hedge Credit Risk Derivative Liabilities, At Fair Value, Excluding Hedge Credit Risk Derivative Liabilities, At Fair Value, Excluding Hedge Less than one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Distributions to non-controlling interest Payments to Noncontrolling Interests Increase in deposits Increase (Decrease) in Deposits Proceeds from maturities and calls of debt securities AFS Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Interest on lease liabilities Finance Lease, Interest Expense Net (loss) gain on equity investments Debt Securities, Available-for-Sale, Gain (Loss) Document Fiscal Period Focus Document Fiscal Period Focus Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Debt securities Interest Income, Debt Securities, Operating Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Total assets Assets Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Other consumer Consumer, Other [Member] Trading Symbol Trading Symbol 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Minimum range of unobservable inputs Fair Value, Measurement with Unobservable Inputs Reconciliation Percentage Minimum Fair value, measurement with unobservable inputs reconciliation percentage minimum. Credit risk derivative liability, fair value Credit Risk Derivative Liabilities, at Fair Value Commercial real estate – investor Commercial Real Estate – Investor Commercial Real Estate Investor [Member] Commercial Real Estate Investor Equity investments Equity Investments Equity Investments Entity Address, City or Town Entity Address, City or Town Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Finance lease Finance Lease, Weighted Average Discount Rate, Percent Total, gross unrealized gains Available for Sale Securities and Held to Maturity Securities Gross Unrealized Gain Available for Sale Securities and Held to Maturity Securities Gross Unrealized Gain Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Increase in short-term borrowings Proceeds from (Repayments of) Short-Term Debt Time deposits, $250,000 and over Time Deposits, at or Above FDIC Insurance Limit Borrowed funds Interest Expense, Borrowings Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Total securities, Estimated Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Fair Value Schedule of Amortized Cost of Debt Securities HTM, Aggregated by Credit Quality Indicator Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] Financial Assets: Assets, Fair Value Disclosure [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Marketing Marketing Expense Securities held-to-maturity, fair value Estimated Fair Value Debt securities held-to-maturity Debt Securities, Held-to-Maturity, Fair Value 2027 Finance Lease, Liability, to be Paid, Year One Cash dividend per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Finance lease Finance Lease, Weighted Average Remaining Lease Term Lease Expense Lease, Cost [Abstract] Held-to-maturity, Less than 12 months, Unrealized Losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] 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] Revenue Revenue from Contract with Customer, Including Assessed Tax Level 2 Inputs Fair Value, Inputs, Level 2 [Member] Derivative, gain (loss) on derivative, net Gain on derivative Derivative, Gain (Loss) on Derivative, Net Loans with modifications to borrowers experiencing financial difficulty Financing Receivable, Excluding Accrued Interest, Modified, Accumulated Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Basis of Presentation Basis of Accounting [Text Block] Total other income Noninterest Income Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Total pledged assets Asset Pledged as Collateral [Member] Net loss (gain) on sales of loans Gain (Loss) on Sales of Loans, Net Residential real estate Residential Mortgage [Member] Gross Unrealized Losses Held-to-maturity, Total, Unrealized Losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss PEO PEO [Member] Total excluding fair value hedge basis adjustment, gross unrealized gains Debt Securities, Available-For-Sale, Accumulated Gross Unrealized Gain, Before Tax And Fair Value Hedge Cumulative Increase (Decrease) Debt Securities, Available-For-Sale, Accumulated Gross Unrealized Gain, Before Tax And Fair Value Hedge Cumulative Increase (Decrease) Loans Receivable, Net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Operating expenses: Noninterest Expense [Abstract] Cash and due from banks Cash and due from banks at beginning of period Cash and due from banks at end of period Cash and Due from Banks Total securities, Less than 12 months, Estimated Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised 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] Number of finance leases Number Of Finance Leases Number Of Finance Leases Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Time deposits Time deposits Time Deposits Retained Earnings Retained Earnings [Member] Pledged Status [Domain] Pledged Status [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Interest-bearing checking Interest-Bearing Domestic Deposit, Checking Cash and due from banks and restricted cash at beginning of period Cash and due from banks and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Interest rate derivative asset Derivative Asset Provision for income taxes Income Tax Expense (Benefit) Available-for-sale, 12 months or Longer, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Purchase of loan pools, net of discount Payments to Acquire Loans Receivable Other assets Other Assets Items measured on a non-recurring basis: Fair Value, Nonrecurring [Member] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Intangibles Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Derivatives Designated as Hedging Instruments Designated as Hedging Instrument [Member] Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Modified [Table] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Debt securities AFS: Debt Securities, Available-for-Sale [Abstract] Hedging Relationship [Axis] Hedging Relationship [Axis] Purchases of restricted equity investments Payments to Acquire Federal Home Loan Bank Stock Net income Net income Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Derivative, notional amount Derivative, Notional Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Advances by borrowers for taxes and insurance Advance Payments by Borrowers for Taxes and Insurance Cash paid for amounts included in the measurement of lease liabilities: Cash Paid for Amounts Included in the Measurement of Lease Liabilities [Abstract] Cash Paid for Amounts Included in the Measurement of Lease Liabilities Collateral received from third parties Securities Received as Collateral Revolving lines of credit Financing Receivable, Excluding Accrued Interest, Revolving Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Exercise of stock options Proceeds from Stock Options Exercised Other real estate owned Other real estate owned Other Real Estate City Area Code City Area Code Schedule of Analysis of Allowance for Credit Losses on Loans Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other Noninterest Income, Other Operating Income Total securities, 12 months or longer, Estimated Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Interest and dividends receivable Interest Receivable Fair Value Hedging Fair Value Hedging [Member] Debt securities available-for-sale, at estimated fair value Estimated Fair Value Debt securities Debt Securities, Available-for-Sale, Excluding Accrued Interest Proceeds from sale of OREO Proceeds from Sale of Other Real Estate Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Total Lease, Cost Cash Flow Hedging Cash Flow Hedging [Member] Equity investment funds measured at NAV Equity Securities, FV-NI Net interest income Interest Income (Expense), Operating Other liabilities Other Liabilities Goodwill Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Lease Expenses and Other Lease Information Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amortized cost Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss 2030 Finance Lease, Liability, to be Paid, Year Four Equity Components [Axis] Equity Components [Axis] Three years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total estimated fair value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Reclassification adjustment for losses included in net income, tax expense Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Number of reportable segments Number of Reportable Segments Loans held-for-sale Mortgages Held-For-Sale, Carrying Value Mortgages Held-For-Sale, Carrying Value Supplemental Disclosure of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Financing cash flows from finance leases Finance Lease, Principal Payments Substandard Substandard [Member] Total interest income Interest and Dividend Income, Operating Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Special Mention Special Mention [Member] Loans receivable, net and loans held-for-sale Loans Receivable, Fair Value Disclosure Bankcard services revenue Credit And Debit Card Revenue Credit And Debit Card Revenue Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Restricted cash at beginning of period Restricted cash at end of period Restricted Cash Leases Lessee, Finance Leases [Text Block] Dividends paid Payments of Ordinary Dividends, Common Stock Additional paid-in capital Additional Paid in Capital, Common Stock Net cash (used in) provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Commercial and industrial – real estate Total commercial and industrial - real estate Commercial and Industrial - Real Estate Commercial And Industrial Real Estate [Member] Commercial And Industrial Real Estate Debt securities HTM: Debt Securities, Held-to-Maturity, Fair Value [Abstract] Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Operating lease ROU assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current Operating lease expense Operating Lease, Cost Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Book Value Reported Value Measurement [Member] Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Merger related expenses Business Combination, Acquisition-Related Cost, Expense Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Lessee, Operating Lease, Liability, To Be Paid, After Year Four Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Modified [Line Items] Benefit for credit losses Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Credit Loss Expense (Reversal) Interest income: Interest and Dividend Income, Operating [Abstract] Derivatives Not Designated as Hedging Instruments Not Designated as Hedging Instrument [Member] 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] Capitalized improvements to OREO Payments For Capital Improvements For Other Real Estate Owned Payments For Capital Improvements For Other Real Estate Owned Deposits Interest Expense, Deposits Total borrowed funds Debt and Lease Obligation Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Data processing Information Technology and Data Processing Other income (loss): Noninterest Income [Abstract] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] 2028 Finance Lease, Liability, to be Paid, Year Two Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Deferred origination costs, net of fees Financing Receivable, Unamortized Loan Cost (Fee) Amortization of intangibles Amortization of intangibles Amortization of Intangible Assets Repurchase shares of common stock Stock Repurchased During Period, Value Depreciation and amortization of premises and equipment Depreciation, Depletion and Amortization Entity Central Index Key Entity Central Index Key PEO Name PEO Name 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] Agency residential Residential Mortgage-Backed Securities [Member] Schedule of Total Loans by Year of Origination, Internally Assigned Credit Grades, Risk Characteristics and Gross Charge-Offs Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Total, amortized cost Available For Sale Securities And Held To Maturity Amortized Cost Available For Sale Securities And Held To Maturity Amortized Cost Schedule of Borrowed Funds Summary Of Borrowed Funds [Table Text Block] Summary Of Borrowed Funds [Table Text Block] Non-interest-bearing Noninterest-Bearing Deposit Liabilities Finance lease liability Total lease liabilities Finance Lease, Liability Arrangement Duration Trading Arrangement Duration Non-agency commercial Mortgage-Backed Securities, Other [Member] Accretion of unrealized loss on securities reclassified to held-to-maturity Accretion Of Unrealized Loss On Securities Reclassified To Held To Maturity Accretion of unrealized loss on securities reclassified to held to maturity. Exercise Price Award Exercise Price Allocation of ESOP stock Amortization of ESOP Award Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Fair value hedge basis adjustment Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Reclassification adjustment for losses included in net income (net of tax expense of $20 in 2025) OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), after Tax Noncontrolling interest, disposed, percent Noncontrolling Interest, Disposed, Percent Noncontrolling Interest, Disposed, Percent Assets Lease ROU Assets Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Banking and Thrift, Other Disclosures [Abstract] Banking and Thrift, Other Disclosure [Abstract] Stockholders’ equity: Equity, Attributable to Parent [Abstract] Net repayment of FHLB advances Proceeds From (Payments Of) FHLBank Borrowings, Financing Activities Proceeds From (Payments Of) FHLBank Borrowings, Financing Activities 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] Other Information Other Lease Cost [Abstract] Other Lease Cost Entity Address, Address Line One Entity Address, Address Line One Schedule of Modified and Troubled Debt Restructuring Loans Financing Receivable, Modified [Table Text Block] Proceeds from the redemption of restricted equity investments Proceeds from Sale of Federal Home Loan Bank Stock Estimated fair value Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Check card processing Check Card Processing Check Card Processing 30-59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Investments [Domain] Investments [Domain] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Investment securities Securities Investment [Member] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Total securities, Less than 12 months, Unrealized Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses Derivatives and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Outstanding commitments to lend to borrowers with loan modifications Financing Receivable, Modified, Commitment to Lend Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Securities Financing Transaction [Line Items] Securities Financing Transaction [Line Items] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Four years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Allocation of ESOP stock Employee Benefits and Share-Based Compensation Compensation and employee benefits Labor and Related Expense Total adjustments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity Document Quarterly Report Document Quarterly Report Available-for-sale, Less than 12 months, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Provision for credit losses Provision for credit losses Provision for Loan, Lease, and Other Losses Deposits Deposit Liabilities Disclosures [Text Block] Income from bank owned life insurance Bank Owned Life Insurance Income Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Total Past Due Financial Asset, Past Due [Member] Held-to-maturity, 12 months or longer, Unrealized Losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Schedule of Recorded Investment in Non-Accrual Loans, by Loan Portfolio Segment Financing Receivable, Nonaccrual [Table Text Block] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Number of operating segments Number of Operating Segments Net (discount) premium amortization in excess of discount accretion on securities Accretion (Amortization) of Discounts and Premiums, Investments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Derivative instrument, asset amount secured by derivative Derivative Instrument, Asset Amount Secured By Derivative Derivative Instrument, Asset Amount Secured By Derivative Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Investment Type [Axis] Investment Type [Axis] Net loan charge-offs Net Loan Charge-offs (Recoveries) Net Loan Charge-offs (Recoveries) Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Held-to-maturity, Less than 12 months, Estimated Fair Value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Restatement Determination Date: Restatement Determination Date [Axis] Time deposits also include brokered deposits Time Deposits Brokered Time Deposits Brokered Stock compensation Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] FHLB advances FHLB advances Advance from Federal Home Loan Bank Total excluding fair value hedge basis adjustment, estimated fair value Debt Securities, Available-For-Sale, Excluding Accrued Interest, Before Fair Value Hedge Cumulative Increase (Decrease) Debt Securities, Available-For-Sale, Excluding Accrued Interest, Before Fair Value Hedge Cumulative Increase (Decrease) Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Gain (losses) in fair value adjustments Derivative, Credit Risk Valuation Adjustments, Derivative Liabilities Derivative, Credit Risk Valuation Adjustments, Derivative Liabilities Losses reclassified from AOCI into interest income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Commercial loan swap income Gain (Loss) on Hedging Activity Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Name Trading Arrangement, Individual Name All Award Types Award Type [Domain] 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Net (increase) decrease in loans receivable Net (Increase) Decrease In Loan Receivable Net (Increase) Decrease In Loan Receivable Compensation Amount Outstanding Recovery Compensation Amount Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Interest rate swaps and cap contracts Interest Rate Swap And Cap [Member] Interest Rate Swap And Cap Preferred Stock Preferred Stock [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Commercial and industrial – non-real estate Total commercial and industrial - non-real estate Commercial and industrial - non-real estate Commercial And Industrial Non-Real Estate [Member] Commercial And Industrial Non-Real Estate 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 Name Awards Close in Time to MNPI Disclosures, Individual Name AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Fees and service charges Deposit Account [Member] 2026 Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] 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 Net unrealized (loss) gain on debt securities, tax expense (benefit) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Schedule of Future Minimum Payments for Finance Leases Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Repurchase agreements Repurchase Agreements [Member] Financial Instruments [Domain] Financial Instruments [Domain] Schedule of Accumulated Other Comprehensive Income/Loss Attributable to Cash Flow Hedge Derivative Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net amortization of deferred costs on borrowings Amortization of Debt Issuance Costs and Discounts Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Interest expense: Interest Expense, Operating and Nonoperating [Abstract] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name Fair Value Measurement [Domain] Fair Value Measurement [Domain] Purchase of debt securities AFS Payments to Acquire Debt Securities, Available-for-Sale Total securities, Unrealized Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Aggregate Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Aggregate Losses Borrowed Funds Debt Disclosure [Text Block] Preferred stock, $0.01 par value, $1,000 liquidation preference, 5,000,000 shares authorized, no shares issued at March 31, 2026 and December 31, 2025, respectively Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount State and municipal debt obligations State and municipal debt obligations US States and Political Subdivisions Debt Securities [Member] Operating cash flows from operating leases Operating Lease, Payments Estimated Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] One year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Total excluding fair value hedge basis adjustment, gross unrealized losses Debt Securities, Available-For-Sale, Accumulated Gross Unrealized Loss, Before Tax And Fair Value Hedge Cumulative Increase (Decrease) Debt Securities, Available-For-Sale, Accumulated Gross Unrealized Loss, Before Tax And Fair Value Hedge Cumulative Increase (Decrease) Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Net income available to common stockholders, diluted Net Income (Loss) Available to Common Stockholders, Diluted All Executive Categories All Executive Categories [Member] Common stock, $0.01 par value, 150,000,000 shares authorized, 63,329,377 and 62,942,427 shares issued at March 31, 2026 and December 31, 2025, respectively; and 57,600,069 and 57,390,569 shares outstanding at March 31, 2026 and December 31, 2025, respectively Common Stock, Value, Issued Finance lease ROU asset Finance Lease, Right-of-Use Asset, after Accumulated Amortization Loans Interest and Fee Income, Loans and Leases Gain recognized on derivatives Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Schedule of Major Types of Deposits Schedule Of Deposits By Type [Table Text Block] Schedule Of Deposits By Type [Table Text Block] Average diluted shares outstanding (in shares) Average diluted shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments to lend additional funds to borrowers Financing Receivable Commitments To Lend Additional Funds On Non Accrual Loans Financing Receivable Commitments To Lend Additional Funds On Non Accrual Loans Segment Reporting Segment Reporting, Policy [Policy Text Block] Net loss from other real estate operations Profit (Loss) from Real Estate Operations Preferred stock, liquidation preference, value Preferred Stock, Liquidation Preference, Value Gross charge-off originated in year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Accretion of unrealized loss on debt securities reclassified to HTM (net of tax expense of $40 in 2026 and $44 in 2025) OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment, after Tax Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Proceeds from bank owned life insurance Proceeds from Life Insurance Policy Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Other operating expenses Other Cost and Expense, Operating Non-Controlling Interest Noncontrolling Interest [Member] Employee Stock Ownership Plan (ESOP), Plan [Domain] Employee Stock Ownership Plan (ESOP), Plan [Domain] Total comprehensive income available to common stockholders Comprehensive Income (Loss) Available For Common Stockholders Comprehensive Income (Loss) Available For Common Stockholders Document Transition Report Document Transition Report Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] 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 Recorded investment in mortgage and consumer loans collateralized, foreclosure amount Mortgage Loans in Process of Foreclosure, Amount Residential loans originated for sale Proceeds From (Payment For) Origination, Loan, Mortgage, Held-For-Sale Proceeds From (Payment For) Origination, Loan, Mortgage, Held-For-Sale Total Finance Lease, Liability, to be Paid Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Schedule of Allowance for Credit Losses for HTM Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table Text Block] Fair value hedge basis adjustment, amortized cost Portfolio layer fair value hedge basis adjustments Hedged Asset, Fair Value Hedge, Portfolio Layer Method, Hedged Layer, Fair Value, Cumulative Increase (Decrease) Premium expense Derivative Instrument, Premium Expense Derivative Instrument, Premium Expense Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] 60-89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Hedging Designation [Axis] Hedging Designation [Axis] Schedule of Weighted-Average Remaining Lease Term and Discount Rate Schedule Of Weighted Average Remaining Lease Term And Discount Rate [Table Text Block] Schedule of Weighted Average Remaining Lease Term and Discount Rate [Table Text Block] Total stockholders’ equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Loans measured for impairment based on the fair value of the underlying collateral Loans, Measured For Impairment, Fair Vale Disclosure Loans, Measured For Impairment, Fair Vale Disclosure Document Type Document Type Level 3 Inputs Fair Value, Inputs, Level 3 [Member] Earnings per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Proceeds from calls and sales of equity investments Proceeds From Calls And Sale Of Equity Method Investments Proceeds From Calls And Sale Of Equity Method Investments Product and Service [Axis] Product and Service [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Current period gross charge-offs, Revolving lines of credit Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Principal repayments on debt securities HTM Principal Repayments On Debt Investment Securities Held-To-Maturity Principal Repayments On Debt Investment Securities Held-To-Maturity All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Purchases of premises and equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name 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] Proceeds from sales of non-performing loans Proceeds from Sale of Finance Receivables Total lease liabilities Leases, Liability Leases, Liability Gross charge-off originated in year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Weighted average shares outstanding (in shares) Weighted Average Number of Shares Issued, Basic Total non-performing loans Financing Receivable, Nonaccrual, No Allowance Schedule of Right-of-Use Assets and Lease Liabilities Schedule Of Right-Of-Use Assets And Lease Liabilities [Table Text Block] Schedule of Right-of-Use Assets and Lease Liabilities [Table Text Block] Trust and asset management revenue Investment Advisory, Management and Administrative Service [Member] Credit risk derivative asset, fair value Credit Risk Derivative Assets, at Fair Value Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Payment of employee taxes withheld from stock awards and phantom stock units Payment, Tax Withholding, Share-Based Payment Arrangement Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Derivative term Derivative, Term of Contract Gross charge-off originated in year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Net income available to common stockholders, basic Net Income (Loss) Available to Common Stockholders, Basic Total lease ROU assets Leases, Right-Of-Use Asset Leases, Right-Of-Use Asset Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Other borrowings Other borrowings Other Borrowings Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Combination of Term Extension and Interest Rate Reduction Extended Maturity and Interest Rate Reduction [Member] Commercial: Commercial and industrial: Commercial and Industrial Commercial Portfolio Segment [Member] Total operating expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Level 1 Inputs Fair Value, Inputs, Level 1 [Member] Net (gain) loss on sale of OREO and fixed assets Gain (Loss) on Disposition of Assets Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Federal deposit insurance and regulatory assessments Federal Deposit Insurance Corporation Premium Expense Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security (Benefit) provision for credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Non-cash activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Due after five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Loans to borrowers experiencing financial difficulty that had payment default Modified loans Financing Receivable, Excluding Accrued Interest, Modified In Period Including Paydowns, Amount Financing Receivable, Excluding Accrued Interest, Modified In Period Including Paydowns, Amount Modified loans Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Cash paid during the period for: Income Taxes Paid, Net [Abstract] Future rent and estimated lease termination liability excluded from operating lease liability Future Rent And Estimated Lease Termination Liability Future Rent And Estimated Lease Termination Liability Non-Investment Grade/Non-rated Internal Noninvestment Grade [Member] Equipment Equipment Expense Finance lease expense: Finance Lease, Expense [Abstract] Finance Lease, Expense [Abstract] Treasury stock, shares (in shares) Treasury Stock, Common, Shares Earnings Per Share [Abstract] Earnings Per Share [Abstract] Securities Financing Transaction [Table] Security Financing Transaction [Table] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Term Extension Extended Maturity [Member] Gross charge-off originated in year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Net loss recognized on fair value hedges Gain (Loss) on Fair Value Hedges Recognized in Earnings FHLB advances and other borrowings Federal Home Loan Bank Borrowings, Fair Value Disclosure Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Total loans receivable Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Dividends on preferred shares Less: dividends on preferred shares Preferred Stock Dividends and Other Adjustments Add: Effect of dilutive securities: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Repurchase of shares of common stock (in shares) Treasury Stock, Shares, Acquired Allowance for securities credit losses Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Award Timing Disclosures [Line Items] Schedule of Realized and Unrealized Gains or Losses on Equity Securities Gain (Loss) on Securities [Table Text Block] Measurement Frequency [Domain] Measurement Frequency [Domain] Federal Home Loan Bank Advances Federal Home Loan Bank Advances [Member] Total Lessee, Operating Lease, Liability, to be Paid Net unrealized (loss) gain on debt securities (net of tax benefit of $788 in 2026 and tax expense of $788 in 2025) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Premises and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Amortization of servicing asset Servicing Asset at Amortized Cost, Amortization Total Total loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Distributions to non-controlling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Loans receivable, net of allowance for loan credit losses of $86,110 at March 31, 2026 and $83,726 at December 31, 2025 Total loans receivable, net Loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Securities sold under agreements to repurchase with customers Securities sold under agreements to repurchase with customers Securities sold under agreements to repurchase with customers Securities Sold under Agreements to Repurchase Proceeds from sales of residential loans held for sale Proceeds from Sale, Loan, Mortgage, Held-for-Sale Net income attributable to OceanFirst Financial Corp. Net Income (Loss) Attributable to Parent Schedule of Estimated Fair Value and Unrealized Losses for Debt Securities AFS and HTM Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Total excluding fair value hedge basis adjustment, amortized cost Debt Securities, Available-For-Sale, Amortized Cost, Excluding Accrued Interest, Before Allowance For Credit Loss And Fair Value Hedge Cumulative Increase (Decrease) Debt Securities, Available-For-Sale, Amortized Cost, Excluding Accrued Interest, Before Allowance For Credit Loss And Fair Value Hedge Cumulative Increase (Decrease) Weighted-Average Remaining Lease Term Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term Net (loss) gain on sales of loans Gain (Loss) on Sale of Mortgage Loans Credit default swap Credit Default Swap [Member] Decrease in other liabilities Increase (Decrease) in Other Operating Liabilities Unrealized (losses) gains recognized on equity investments still held Equity Securities, FV-NI, Unrealized Gain (Loss) Allowance for credit losses Allowance for Securities Credit Losses Beginning balance Total ending allowance balance Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest Restructuring charges Restructuring Charges Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Purchase of treasury stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Hedged Asset, Statement of Financial Position [Extensible Enumeration] Hedged Asset, Statement of Financial Position [Extensible Enumeration] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Receivables [Abstract] Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Fair value hedge basis adjustment, gross unrealized losses Hedged Asset, Fair Value Hedge, Portfolio Layer Method, Hedged Layer, Accumulated Gross Unrealized Loss, Before Tax, Cumulative Increase (Decrease) Hedged Asset, Fair Value Hedge, Portfolio Layer Method, Hedged Layer, Accumulated Gross Unrealized Loss, Before Tax, Cumulative Increase (Decrease) Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Less than one year Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Retained earnings Retained Earnings (Accumulated Deficit) Money market deposit Deposits, Money Market Deposits Residential Real Estate Residential real estate Residential Portfolio Segment [Member] Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 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] Executive Category: Executive Category [Axis] Available-for-sale, 12 months or longer, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Unallocated incentive award shares (in shares) Unallocated Incentive Award Shares And Shares Held By Deferred Compensation Plan Unallocated Incentive Award Shares And Shares Held By Deferred Compensation Plan Current Fiscal Year End Date Current Fiscal Year End Date Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Available-for-sale, Less than 12 months, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Deposits Total deposits Deposits 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] Schedule of Loans Receivable, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Professional fees Professional Fees Statement [Table] Statement [Table] Restricted equity investments, at cost Restricted equity investments Federal Home Loan Bank Stock Derivative liability Derivative Liability Deferred tax benefit provision Deferred Income Tax Expense (Benefit) 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] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass Pass [Member] Interest Rate Contract Interest Rate Contract [Member] Available-for-sale, Total, Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Equity investments Equity Securities, FV-NI, Current Antidilutive stock options excluded from earnings per share calculations (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Schedule of Aging of Recorded Investment in Past Due Loans by Loan Portfolio Segment Financing Receivable, Past Due [Table Text Block] Increase in advances by borrowers for taxes and insurance Increase (Decrease) in Advance Payments by Borrowers for Taxes and Insurance Treasury stock, 5,729,308 and 5,551,858 shares at March 31, 2026 and December 31, 2025, respectively Treasury Stock, Common, Value Leases Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Transfer of loans receivable to loans held-for-sale Financing Receivable, Reclassification to Held-for-Sale Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Allowance for loan credit losses Allowance for loan credit losses Balance at beginning of period Balance at end of period Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Operating leases Operating Lease, Weighted Average Discount Rate, Percent Average basic shares outstanding (in shares) Average basic shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Consumer: Other consumer Consumer Portfolio Segment [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] Total debt securities held-to-maturity Debt Securities, Held-To-Maturity, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss Debt Securities, Held-To-Maturity, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Gross charge-off originated in year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Employee Stock Ownership Plan (ESOP) Name [Axis] Employee Stock Ownership Plan (ESOP) Name [Axis] Realized gains or losses on debt securities available for sale Debt Securities, Available-for-Sale, Realized Gain (Loss) Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Schedule of Reconciliation of Shares Outstanding for Basic and Diluted Earnings Per Share Schedule of Weighted Average Number of Shares [Table Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Deposits other than time deposits Deposits Other Than Time Deposits Fair Value Disclosure Deposits Other Than Time Deposits Fair Value Disclosure Operating leases Operating Lease, Weighted Average Remaining Lease Term Agency commercial Commercial Mortgage-Backed Securities [Member] Less: Net gains recognized on equity investments sold Realized gains (losses) on equity investments Equity Securities, FV-NI, Realized Gain (Loss) Maximum range of unobservable inputs Fair Value, Measurement with Unobservable Inputs Reconciliation Percentage Maximum Fair value, measurement with unobservable inputs reconciliation percentage maximum. Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Occupancy Occupancy, Net Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Schedule of Financial Assets and Financial Liabilities Measured at Fair Value Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Five years and prior before current fiscal year Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Security Exchange Name Security Exchange Name Loans Not Past Due Current Financial Asset, Not Past Due [Member] Allowance for Securities Credit Losses Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Total liabilities Liabilities Net loss (gain) on equity investments Net (loss) gain on equity investments Marketable Security, Unrealized Gain (Loss) Total mortgage-backed securities Non-agency commercial MBS Mortgage-backed securities: Collateralized Mortgage-Backed Securities [Member] Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items] Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items] Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items] Total amortized cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost % of Total by Loan Portfolio Segment Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Preferred stock dividend Dividends, Preferred Stock Thereafter Finance Lease, Liability, to be Paid, After Year Four Finance Lease, Liability, to be Paid, After Year Four Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Equity investments and other Interest and Dividend Income, Securities, Operating, Other Savings Deposits, Savings Deposits Statement [Line Items] Statement [Line Items] Asset-backed securities Asset-backed securities Asset-Backed Securities [Member] Amortized cost (excluding fair value hedge basis adjustment) Hedged Asset, Fair Value Hedge Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Total securities, 12 months or longer, Unrealized Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses Proceeds from maturities and calls of debt securities HTM Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Common Stock Common Stock [Member] Debt securities available-for-sale Debt Securities, Available-for-Sale Debt securities held-to-maturity, net of allowance for securities credit losses of $754 at March 31, 2026 and $811 at December 31, 2025 (estimated fair value of $793,409 at March 31, 2026 and $825,790 at December 31, 2025) Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Finance Lease Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Corporate debt securities Corporate debt securities Corporate Debt Securities [Member] Net increase in cash and due from banks and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Incentive awards (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Collateral already posted, fair value Collateral Already Posted, Aggregate Fair Value