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Loans - Amortized Cost of Collateral (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | $ 6,668,912 | $ 6,747,873
Basis adjustments | (1,421) | 2,025
Portfolio Layer Hedges on Closed Portfolio of Loans | Designated as hedging instrument |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Basis adjustments | 1,400 | (2,000)
Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 40,092 | 22,896
Business Assets |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 6,599 | 11,101
Multi-family Residential Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,448,186 | 2,531,613
Multi-family Residential Portfolio Segment [Member] | Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 14,531 | 11,707
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,961,833 | 1,974,622
Commercial | Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 22,011 | 6,376
1-4 Family Mixed-Use Property |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 485,366 | 513,938
1-4 Family Mixed-Use Property | Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans |  | 117
1-4 Family Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 336,505 | 244,593
1-4 Family Residential | Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 750 | 812
Construction Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 51,527 | 60,114
Small Business Administration |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 11,556 | 20,195
Small Business Administration | Business Assets |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 558 | 2,531
Commercial Business and Other Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,373,939 | 1,402,798
Commercial Business and Other Portfolio Segment | Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,800 | 3,884
Commercial Business and Other Portfolio Segment | Business Assets |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | $ 6,041 | $ 8,570

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