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Loans and Allowance for Credit Losses - Composition of Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Loans: |  |
Net unamortized premiums and unearned loan fees | $ 10,097 | $ 9,590
Total loans, net of fees and costs excluding portfolio layer basis adjustments | 6,747,873 | 6,907,899
Unallocated portfolio layer basis adjustments | (2,025) | (949)
Total loans, net of fees and costs | 6,745,848 | 6,906,950
Multi-Family Residential |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 2,527,222 | 2,658,205
Commercial Real Estate |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 1,973,124 | 1,958,252
One-To-Four Family - Mixed Used Property |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 511,222 | 530,243
One-To-Four Family - Residential |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 244,282 | 220,213
Construction Portfolio Segment |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 60,399 | 58,673
Total loans, net of fees and costs excluding portfolio layer basis adjustments | 60,114 | 58,261
Small Business Administration |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | 19,925 | 20,205
Commercial Business and Other |  |
Loans: |  |
Loans before allowance for credit losses, fee and costs | $ 1,401,602 | $ 1,452,518

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