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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, 2025 | Dec. 31, 2024
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities held-to-maturity, Net Carrying Amount | $ 51,150 | $ 51,485
Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivatives | 19,128 | 7,035
Derivatives | 25,219 | 20,396
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 879,566 | 911,636
Fair Value, Measurements, Recurring [Member] | Other securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 570,578 | 586,269
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 12,160 | 11,890
Fair Value, Measurements, Recurring [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 available for sale | 879,566 | 911,636
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 538,944 | 554,914
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other securities [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale | 19,474 | 19,465
Reported Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 271,912 | 152,574
Loans held for sale | 29,624 | 70,098
Loans | 6,741,835 | 6,745,848
FHLB-NY stock | 18,475 | 38,096
Accrued interest receivable | 61,510 | 62,036
Derivatives |  | 54,700
Deposits | 7,718,218 | 7,178,933
Borrowed Funds | 421,542 | 916,054
Accrued interest payable | 12,609 | 12,275
Derivatives |  | 20,396
Reported Value Measurement [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivatives | 45,680 |
Derivatives | 25,219 |
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, Net Carrying Amount | 7,831 | 7,836
Securities available for sale | 879,566 | 911,636
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, Net Carrying Amount | 43,319 | 43,649
Securities available for sale | 570,578 | 586,269
Estimate of Fair Value Measurement [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and due from banks | 271,912 | 152,574
Loans held for sale | 29,624 | 70,098
Loans | 6,496,787 | 6,506,439
FHLB-NY stock | 18,475 | 38,096
Accrued interest receivable | 61,510 | 62,036
Derivatives |  | 54,700
Deposits | 7,702,976 | 7,148,847
Borrowed Funds | 396,718 | 887,312
Accrued interest payable | 12,609 | 12,275
Derivatives |  | 20,396
Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivatives | 45,680 |
Derivatives | 25,219 |
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, Net Carrying Amount | 7,087 | 6,903
Securities available for sale | 879,566 | 911,636
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, Net Carrying Amount | 37,583 | 37,815
Securities available for sale | 570,578 | 586,269
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 | 271,912 | 152,574
Deposits | 5,126,192 | 4,528,769
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 | 12,160 | 11,890
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 | 18,475 | 38,096
Accrued interest receivable | 61,510 | 62,036
Derivatives |  | 54,700
Deposits | 2,576,784 | 2,620,078
Borrowed Funds | 347,615 | 838,517
Accrued interest payable | 12,609 | 12,275
Derivatives |  | 20,396
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] |  |
Derivatives | 45,680 |
Derivatives | 25,219 |
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, Net Carrying Amount | 7,087 | 6,903
Securities available for sale | 879,566 | 911,636
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 | 538,944 | 554,914
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 held for sale | 29,624 | 70,098
Loans | 6,496,787 | 6,506,439
Borrowed Funds | 49,103 | 48,795
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, Net Carrying Amount | 37,583 | 37,815
Securities available for sale | $ 19,474 | $ 19,465

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