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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, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | $ 72,012 | $ 72,923
Securities available for sale | 1,631,164 | 954,164
Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 6,384 | 20,508
Interest rate swaps | 19,685 | 28,401
Reported Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 156,913 | 172,157
Loans | 6,777,026 | 6,906,950
FHLB-NY stock | 46,331 | 31,066
Accrued interest receivable | 62,752 | 59,018
Deposits | 6,906,863 | 6,815,261
Borrowed Funds | 1,316,565 | 841,281
Accrued interest payable | 14,208 | 12,111
Reported Value Measurement [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swaps | 73,259 | 69,013
Interest rate swaps |  | 28,401
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 | 7,846 | 7,855
Securities available for sale | 869,494 | 354,344
Reported Value Measurement [Member] | Total Other Securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 65,255 | 66,155
Securities available for sale | 679,117 | 520,409
Estimate of Fair Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 156,913 | 172,157
Loans | 6,367,675 | 6,512,841
FHLB-NY stock | 46,331 | 31,066
Accrued interest receivable | 62,752 | 59,018
Deposits | 6,868,983 | 6,778,657
Borrowed Funds | 1,272,691 | 801,156
Accrued interest payable | 14,208 | 12,111
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 | 73,259 | 69,013
Interest rate swaps | 19,685 | 28,401
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 | 6,917 | 7,058
Securities available for sale | 869,494 | 354,344
Estimate of Fair Value Measurement [Member] | Total Other Securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 54,153 | 58,697
Securities available for sale | 679,117 | 520,409
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 | 156,913 | 172,157
Deposits | 4,470,969 | 4,503,971
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Total Other Securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 11,655 | 11,660
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 | 46,331 | 31,066
Accrued interest receivable | 62,752 | 59,018
Deposits | 2,398,014 | 2,274,686
Borrowed Funds | 1,224,150 | 753,306
Accrued interest payable | 14,208 | 12,111
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 | 73,259 | 69,013
Interest rate swaps | 19,685 | 28,401
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 | 6,917 | 7,058
Securities available for sale | 869,494 | 354,344
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Total Other Securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 666,005 | 507,312
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 | 6,367,675 | 6,512,841
Borrowed Funds | 48,541 | 47,850
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Total Other Securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity | 54,153 | 58,697
Securities available for sale | $ 1,457 | $ 1,437

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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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