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Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Selected Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 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 | $ 73,334 | $ 73,711
Securities available for sale | 961,591 | 826,881
Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 4,247 | 2,401
Interest rate swaps | 16,510 | 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 | 160,053 | 151,754
Loans | 6,832,425 | 6,934,769
FHLB-NY stock | 36,168 | 45,842
Accrued interest receivable | 52,911 | 45,048
Deposits | 6,723,690 | 6,485,342
Borrowed Funds | 857,400 | 1,052,973
Accrued interest payable | 9,234 | 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 | 87,732 | 74,856
Interest rate swaps | 16,510 | 18,407
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 7,865 | 7,875
Securities available for sale | 365,911 | 384,283
Reported Value Measurement [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 65,469 | 65,836
Securities available for sale | 503,645 | 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 | 160,053 | 151,754
Loans | 6,488,955 | 6,651,795
FHLB-NY stock | 36,168 | 45,842
Accrued interest receivable | 52,911 | 45,048
Deposits | 6,663,332 | 6,453,978
Borrowed Funds | 807,724 | 1,027,370
Accrued interest payable | 9,234 | 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 | 87,732 | 74,856
Interest rate swaps | 16,510 | 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] |  |
Securities held-to-maturity | 7,011 | 6,989
Securities available for sale | 365,911 | 384,283
Estimate of Fair Value Measurement [Member] | Other Debt Obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 57,326 | 55,561
Securities available for sale | 503,645 | 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 | 160,053 | 151,754
Deposits | 4,490,994 | 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] |  |
Securities available for sale | 11,346 | 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 | 36,168 | 45,842
Accrued interest receivable | 5,821 | 3,819
Deposits | 2,172,338 | 1,494,974
Borrowed Funds | 759,947 | 976,863
Accrued interest payable | 9,234 | 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 | 87,732 | 74,856
Interest rate swaps | 16,510 | 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] |  |
Securities held-to-maturity | 7,011 | 6,989
Securities available for sale | 365,911 | 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] |  |
Securities available for sale | 490,865 | 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 | 6,488,955 | 6,651,795
Accrued interest receivable | 47,090 | 41,229
Borrowed Funds | 47,777 | 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] |  |
Securities held-to-maturity | 57,326 | 55,561
Securities available for sale | $ 1,434 | $ 1,516

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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Publisher FASB -URI https://asc.fasb.org//310-10/tableOfContent + Details
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