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Share Repurchase Program, Authorized, Amount New York Community Capital Trust X New York Community Capital Trust X [Member] New York Community Capital Trust X Document Quarterly Report Document Quarterly Report 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] Special Mention Special Mention [Member] Originated year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Interest payable Interest Payable Capital Securities Amount Outstanding Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount Repayments of long-term borrowed funds Repayments of Long-Term Debt Liabilities Derivative Liability [Abstract] Contractual Maturity Federal Home Loan Bank, Advances, Floating Rate [Abstract] Awards Close in 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Debt securities available-for-sale Debt Securities, Available for Sale [Member] Debt Securities, Available for Sale Equity investments with readily determinable fair values, at fair value Equity Securities, FV-NI, Current Non-accrual loans with no related allowance: Financing Receivable, With No Related Allowance, Average Recorded Investment Financing Receivable, With No Related Allowance, Average Recorded Investment 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] Common Stock Common Stock Liquidation Preference, Value Common Stock Liquidation Preference, Value Operating lease liabilities Operating Lease, Liability Schedule of Components of Lease Income Direct Financing Lease, Lease Income [Table Text Block] Other financing activities, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Interest expense on short-term borrowings Interest Expense, Short-Term Borrowings Number of locations Number Of Locations Number Of Locations Business Combination [Domain] Business Combination [Domain] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Components of net periodic pension expense (income) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Core deposit intangible Core Deposits [Member] Business Combination [Axis] Business Combination [Axis] Preferred Stock Preferred Stock, Liquidation Preference, Value Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Substandard Substandard [Member] Change in loans held for sale, net Increase (Decrease) in Loan, Held-for-Sale Income Statement Income Statement [Abstract] Stockholders' equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Fair Value, Option, Quantitative Disclosures Fair Value, Option, Quantitative Disclosures [Line Items] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] Other Commitments [Domain] Other Commitments [Domain] City Area Code City Area Code Earlier of Contractual Maturity or Next Call Date Federal Home Loan Bank, Advances, Par Value, Earlier of Contractual Maturity or Next Call Date, Rolling Year [Abstract] Document Information [Table] Document Information [Table] Name Forgone Recovery, Individual Name 2026 Federal Home Loan Bank, Advance, Maturity, Remainder of Fiscal Year Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Preferred stock, shares 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] Decrease in other miscellaneous assets Increase (Decrease) in Other Operating Assets Capital trust notes Corporate Note Securities [Member] Net increase (decrease) in deposits Increase (Decrease) in Deposits Stock-based compensation expense Share-Based Payment Arrangement, Expense Interest in share conversion ratio Preferred Stock, Convertible, Conversion Ratio Measurement Basis [Axis] Measurement Basis [Axis] Liquidation Preference Per Share Temporary Equity And Equity, Liquidation Preference [Abstract] Temporary Equity And Equity, Liquidation Preference Non-accrual loans: Nonaccrual Loans [Member] Nonaccrual Loans Commercial and Industrial Commercial And Industrial Loans [Member] Portfolio segment of the company's total financing receivables related to commercial and industrial loans, which includes lines of credit to small or middle market businesses for use in normal business operations to finance working capital needs, equipment purchases and expansion projects. 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Adjustments to reconcile net income (loss) to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Noncumulative convertible preferred stock (in usd per share) Temporary Equity, Par or Stated Value Per Share Weighted-Average Term (in years) Financing Receivable, Modified, Weighted-Average Term Increase from Modification CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Premises and equipment, net Premises and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Interest cost Defined Benefit Plan, Interest Cost Financial Instruments [Domain] Financial Instruments [Domain] Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Tax [Abstract] Originated year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before 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Reduction [Member] Forfeited (in usd per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Preferred Stock A (Par Value: $0.01) Preferred Stock Preferred Stock [Member] Other investing activities Payment for (Proceeds from) Other Investing Activity Weighted average discount rate % Operating Lease, Weighted Average Discount Rate, Percent Schedule of Nonvested Restricted Stock Shares Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Total Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Schedule of Lease Cost Information Lease, Cost [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Less than Twelve Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Mortgage Backed 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Noncumulative convertible preferred stock (in shares) Temporary Equity, Shares Issued 2026 Federal Home Loan Bank, Advances, Earlier Of Contractual Maturity Or Next Call Date, In Next Rolling 9 months Federal Home Loan Bank, Advances, Earlier Of Contractual Maturity Or Next Call Date, In Next Rolling 9 months Cash Flow Hedges Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Loans 90 Days or More Past Due and Still Accruing Financial Asset, 90 Days Or More Past Due And Still Accruing [Member] Financial Asset, 90 Days To More Past Due Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Cash and due from banks Cash and Due from Banks Schedule of Delinquency Status of Our Loans Held for Investment Financing Receivable, Past Due [Table Text Block] Securities and money market investments Interest and Dividend Income, Securities, Operating Current Current Financial Asset, Not Past Due [Member] Loans held for sale: Loans Held-For-Sale [Member] Loans that are intended to be sold into the secondary market on a whole loan basis or by securitizing the loans into securities. Net unrealized gain (loss) on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Other Commitments [Line Items] Other Commitments [Line Items] Tax benefit Share-Based Payment Arrangement, Expense, Tax Benefit Preferred stock dividends Preferred Stock Dividends, Income Statement Impact Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Other Noninterest Income, Other Operating Income (Loss) Noninterest Income, Other Operating Income (Loss) Bank-owned life insurance Bank Owned Life Insurance Income 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] Debt Instrument [Axis] Debt Instrument [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense INTEREST EXPENSE: Interest Expense, Operating and Nonoperating [Abstract] Compensation and benefits Labor and Related Expense Investment securities pledged Debt Securities, Available For Sale, Excluding Interest And Equity Securities, Current Debt Securities, Available For Sale, Excluding Interest And Equity Securities, Current Related-party loans outstanding Related Party Transaction, Amounts of Transaction Par Value Temporary Equity And Equity, Par Value [Abstract] Temporary Equity And Equity, Par Value Basic earnings (loss) per common share (in usd per share) Basic income (loss) per common share (in usd per share) Earnings Per Share, Basic Fair Value Fair Value, Option, Loans Held As Assets Fair Value, Option, Loans Held As Assets Corporate and Other Bonds Corporate And Other Bonds Securities [Member] Corporate And Other Bonds Securities Insider Trading Arrangements [Line Items] Unvested, beginning balance (in shares) Unvested, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares 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] Fair Value Measurement [Domain] Fair Value Measurement [Domain] 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] Originated year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Equity Awards Adjustments Equity Awards Adjustments [Member] Subordinated Notes Maturing In 2030 Subordinated Notes Maturing In 2030 [Member] Subordinated Notes Maturing In 2030 Amount Federal Home Loan Bank, Advances, Par Value, Earlier of Contractual Maturity or Next Put or Convert Date, Rolling Year [Abstract] Hedging Relationship [Domain] Hedging Relationship [Domain] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Decrease in other miscellaneous liabilities Increase (Decrease) in Other Operating Liabilities Revolving Loans Converted to Term Loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff Pass Pass [Member] Schedule of Components Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Junior subordinated debentures Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Schedule of Stock Based Compensation Expense and Related Tax Benefit Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Cumulative Amount of Fair Value Hedging Adjustments Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period General and administrative General and administrative General and Administrative Expense Purchases of premises and equipment Proceeds From Sale (Payments To Acquire) Property, Plant And Equipment Proceeds From Sale (Payments To Acquire) Property, Plant And Equipment Preferred stock (in shares) Preferred Stock, Shares Authorized Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Securitization of loans to mortgage-backed securities available-for-sale Securitization Of Loans To Mortgage-Backed Securities Available-For-Sale Securitization Of Loans To Mortgage-Backed Securities Available-For-Sale LGG loans Financing Receivable, With Government Guaranty Financing Receivable, With Government Guaranty Shares Issued Temporary Equity And Equity, Shares Issued [Abstract] Temporary Equity And Equity, Shares Issued Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Total loan commitments Other Commitment Schedule of Stock by Class Schedule of Stock by Class [Table Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Schedule of Trading and Available-for-sale Securities Schedule of Trading and Available-for-sale Securities [Table Text Block] The table text block of the schedule of trading and available-for-sale securities. Federal, State, and Local Taxes Income Tax Disclosure [Text Block] Schedule of Company's Carrying Amounts on our Hedged Loans Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Entity Filer Category Entity Filer Category Total Debt Securities, Available-for-Sale, Unrealized Loss Position Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Total non-accrual loans Financing Receivable, Recorded Investment Financing Receivable, Recorded Investment 2027 Federal Home Loan Bank, Advance, Maturity, Year One VIE ownership percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Derivatives 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] Interest rate caps Interest Rate Cap [Member] Derivative liabilities: Derivative Liability Entity Address, Address Line One Entity Address, Address Line One Vested (in usd 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 Income tax expense (benefit) Income tax (benefit) Income Tax Expense (Benefit) Fair Value Hedging Interest rate swaps Fair Value Hedging [Member] Bifurcated Option Note Unit Securities Bifurcated Option Note Unit Securities [Member] Bifurcated option note unit securities. 2028 Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Two Financial Instruments Owned and Pledged as Collateral [Line Items] Financial Instruments Owned and Pledged as Collateral [Line Items] Total Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] 2032 Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Six Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Six Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Statement [Table] Statement [Table] Originated year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Foreign currency forwards Foreign Currency Forwards [Member] Foreign Currency Forwards Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Loans held for sale: Loan, Held-for-Sale, Fair Value Disclosure Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]