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Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Selected Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Securities held-to-maturity, amortized cost | $ 73,523 | $ 73,711
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 811,928 | 735,357
Interest Rate Swap [Member] |  |
Interest Rate Swaps, Net Amount | 627 | 2,401
Interest rate swaps | 18,729 | 18,407
Collateralized Mortgage Backed Securities |  |
Securities held-to-maturity, amortized cost | 7,870 |
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 380,110 | 384,283
Reported Value Measurement [Member] |  |
Cash and due from banks | 176,747 | 151,754
Loans | 6,904,176 | 6,934,769
FHLB-NY stock | 38,779 | 45,842
Accrued interest receivable | 46,836 | 45,048
Deposits | 6,734,090 | 6,485,342
Borrowings | 887,509 | 1,052,973
Accrued interest payable | 7,520 | 10,034
Reported Value Measurement [Member] | Interest Rate Swap [Member] |  |
Interest Rate Swaps, Net Amount | 65,072 | 74,856
Interest rate swaps | 18,729 | 18,407
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities |  |
Securities held-to-maturity, amortized cost | 7,870 | 7,875
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 380,110 | 384,283
Reported Value Measurement [Member] | Other Debt Obligations |  |
Securities held-to-maturity, amortized cost | 65,653 | 65,836
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 431,818 | 351,074
Estimate of Fair Value Measurement [Member] |  |
Cash and due from banks | 176,747 | 151,754
Loans | 6,580,759 | 6,651,795
FHLB-NY stock | 38,779 | 45,842
Accrued interest receivable | 46,836 | 45,048
Deposits | 6,702,840 | 6,453,978
Borrowings | 861,879 | 1,027,370
Accrued interest payable | 7,520 | 10,034
Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] |  |
Interest Rate Swaps, Net Amount | 65,072 | 74,856
Interest rate swaps | 18,729 | 18,407
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities |  |
Securities held-to-maturity, amortized cost | 7,137 | 6,989
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 380,110 | 384,283
Estimate of Fair Value Measurement [Member] | Other Debt Obligations |  |
Securities held-to-maturity, amortized cost | 60,732 | 55,561
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 431,818 | 351,074
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Cash and due from banks | 176,747 | 151,754
Deposits | 4,853,830 | 4,959,004
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Other Debt Obligations |  |
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 11,460 | 11,211
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |  |
FHLB-NY stock | 38,779 | 45,842
Accrued interest receivable | 4,774 | 3,819
Deposits | 1,849,010 | 1,494,974
Borrowings | 813,762 | 976,863
Accrued interest payable | 7,520 | 10,034
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |
Interest Rate Swaps, Net Amount | 65,072 | 74,856
Interest rate swaps | 18,729 | 18,407
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities |  |
Securities held-to-maturity, amortized cost | 7,137 | 6,989
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 380,110 | 384,283
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Other Debt Obligations |  |
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | 418,913 | 338,347
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Loans | 6,580,759 | 6,651,795
Accrued interest receivable | 42,062 | 41,229
Borrowings | 48,117 | 50,507
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Other Debt Obligations |  |
Securities held-to-maturity, amortized cost | 60,732 | 55,561
Securities available for sale, at fair value: (assets pledged of $193,558 and $172,235, respectively; $13,192 and $13,023 at fair value pursuant to the fair value option, respectively) | $ 1,445 | $ 1,516

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