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Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Selected Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | $ 72,923 | $ 73,711
Securities available for sale | 954,164 | 826,881
Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 20,508 | 2,401
Interest rate swaps | 28,401 | 18,407
Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale |  | 454,320
Reported Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 172,157 | 151,754
Loans | 6,906,950 | 6,934,769
FHLB-NY stock | 31,066 | 45,842
Accrued interest receivable | 59,018 | 45,048
Deposits | 6,815,261 | 6,485,342
Borrowed Funds | 841,281 | 1,052,973
Accrued interest payable | 12,111 | 10,034
Reported Value Measurement [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 69,013 | 74,856
Interest rate swaps | 28,401 | 18,407
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 7,855 | 7,875
Debt Securities, Available-for-Sale | 354,344 | 384,283
Reported Value Measurement [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 65,068 | 65,836
Debt Securities, Available-for-Sale | 520,409 | 351,074
Estimate of Fair Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 172,157 | 151,754
Loans | 6,512,841 | 6,651,795
FHLB-NY stock | 31,066 | 45,842
Accrued interest receivable | 59,018 | 45,048
Deposits | 6,778,657 | 6,453,978
Borrowed Funds | 801,156 | 1,027,370
Accrued interest payable | 12,111 | 10,034
Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 69,013 | 74,856
Interest rate swaps | 28,401 | 18,407
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 7,058 | 6,989
Debt Securities, Available-for-Sale | 354,344 | 384,283
Estimate of Fair Value Measurement [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 58,697 | 55,561
Debt Securities, Available-for-Sale | 520,409 | 351,074
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 172,157 | 151,754
Deposits | 4,503,971 | 4,959,004
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Available-for-Sale | 11,660 | 11,211
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
FHLB-NY stock | 31,066 | 45,842
Accrued interest receivable | 59,018 | 45,048
Deposits | 2,274,686 | 1,494,974
Borrowed Funds | 753,306 | 976,863
Accrued interest payable | 12,111 | 10,034
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 69,013 | 74,856
Interest rate swaps | 28,401 | 18,407
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 7,058 | 6,989
Debt Securities, Available-for-Sale | 354,344 | 384,283
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Available-for-Sale | 507,312 | 338,347
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans | 6,512,841 | 6,651,795
Borrowed Funds | 47,850 | 50,507
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 58,697 | 55,561
Debt Securities, Available-for-Sale | $ 1,437 | $ 1,516

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