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Loans and Allowance for Loan Losses - Age Analysis of Recorded Investment in Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Loans, Past Due | $ 43,232 | $ 67,381
Loans, Current | 6,702,084 | 6,637,293
Loans | 6,745,316 | 6,704,674
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 21,412 | 36,947
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 2,705 | 11,519
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 19,115 | 18,915
Multi-family Residential Portfolio Segment [Member] |  |
Loans, Past Due | 16,523 | 13,545
Loans, Current | 2,510,593 | 2,522,432
Loans | 2,527,116 | 2,535,977
Multi-family Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 11,887 | 7,582
Multi-family Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 0 | 3,186
Multi-family Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 4,636 | 2,777
Commercial Real Estate |  |
Loans, Past Due | 1,254 | 27,339
Loans, Current | 1,722,223 | 1,731,045
Loans | 1,723,477 | 1,758,384
Commercial Real Estate | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 419 | 17,903
Commercial Real Estate | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 800 | 5,123
Commercial Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 35 | 4,313
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] |  |
Loans, Past Due | 8,449 | 8,238
Loans, Current | 590,570 | 598,647
Loans | 599,019 | 606,885
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 4,759 | 5,673
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 1,210 | 1,132
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 2,480 | 1,433
One-To-Four Family - Residential Portfolio Segment [Member] |  |
Loans, Past Due | 8,265 | 9,205
Loans, Current | 238,740 | 243,486
Loans | 247,005 | 252,691
One-To-Four Family - Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 1,101 | 3,087
One-To-Four Family - Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 375 | 805
One-To-Four Family - Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 6,789 | 5,313
Construction Portfolio Segment [Member] |  |
Loans, Past Due | 2,381 | 750
Loans, Current | 59,052 | 82,411
Loans | 61,433 | 83,161
Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 0 | 750
Construction Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 0 | 0
Construction Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 2,381 | 0
Small Business Administration Portfolio Segment [Member] |  |
Loans, Past Due | 1,810 | 2,991
Loans, Current | 259,829 | 162,579
Loans | 261,639 | 165,570
Small Business Administration Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 642 | 1,823
Small Business Administration Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 0 | 0
Small Business Administration Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 1,168 | 1,168
Taxi Medallion Portfolio Segment [Member] |  |
Loans, Past Due | 0 | 2,318
Loans, Current | 0 | 279
Loans | 0 | 2,597
Taxi Medallion Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 0 | 0
Taxi Medallion Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 0 | 0
Taxi Medallion Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | 0 | 2,318
Commercial Business and Other Portfolio Segment [Member] |  |
Loans, Past Due | 4,550 | 2,995
Loans, Current | 1,321,077 | 1,296,414
Loans | 1,325,627 | 1,299,409
Commercial Business and Other Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, Past Due | 2,604 | 129
Commercial Business and Other Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, Past Due | 320 | 1,273
Commercial Business and Other Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, Past Due | $ 1,626 | $ 1,593

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