v3.26.1
Loans Receivable and Allowance for Credit Losses - Aging Loans Held for Investment by Portfolio Segment and Class (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans $ 20,059,442 $ 19,515,513
Non-accrual 136,885 78,420
Non-accrual loans with no related allowance 128,405 67,506
Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,502,579 7,398,792
Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,806,823 3,667,337
Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 638,933 662,112
Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,938,704 1,974,324
Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 158,358 112,451
30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 13,139 27,508
60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 8,334 6,523
90 days or more Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 19,901,084 19,403,062
Mortgage loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 13,887,039 13,702,565
Non-accrual 32,292 43,345
Non-accrual loans with no related allowance 32,292 38,995
Mortgage loans | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,502,579 7,398,792
Non-accrual 21,338 26,856
Non-accrual loans with no related allowance 21,338 22,506
Mortgage loans | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,806,823 3,667,337
Non-accrual 266 2,268
Non-accrual loans with no related allowance 266 2,268
Mortgage loans | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 638,933 662,112
Non-accrual 2,854 5,159
Non-accrual loans with no related allowance 2,854 5,159
Mortgage loans | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,938,704 1,974,324
Non-accrual 7,834 9,062
Non-accrual loans with no related allowance 7,834 9,062
Mortgage loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 48,485 72,450
Mortgage loans | Total Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 23,639 42,508
Mortgage loans | Total Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,836 3,200
Mortgage loans | Total Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 2,854 5,159
Mortgage loans | Total Past Due | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 20,156 21,583
Mortgage loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 10,264 23,996
Mortgage loans | 30-59 Days Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 2,301 15,652
Mortgage loans | 30-59 Days Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,570 0
Mortgage loans | 30-59 Days Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 30-59 Days Past Due | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 6,393 8,344
Mortgage loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,929 5,109
Mortgage loans | 60-89 Days Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 60-89 Days Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 932
Mortgage loans | 60-89 Days Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 60-89 Days Past Due | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,929 4,177
Mortgage loans | 90 days or more Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 90 days or more Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 90 days or more Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 90 days or more Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | 90 days or more Past Due | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Mortgage loans | Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 13,838,554 13,630,115
Mortgage loans | Current | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,478,940 7,356,284
Mortgage loans | Current | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,804,987 3,664,137
Mortgage loans | Current | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 636,079 656,953
Mortgage loans | Current | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,918,548 1,952,741
Commercial loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,565,030 5,200,517
Non-accrual 103,383 33,219
Non-accrual loans with no related allowance 94,903 26,655
Commercial loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 105,685 35,155
Commercial loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,474 1,303
Commercial loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 828 633
Commercial loans | 90 days or more Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Commercial loans | Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,459,345 5,165,362
Consumer loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 607,373 612,431
Non-accrual 1,210 1,856
Non-accrual loans with no related allowance 1,210 1,856
Consumer loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 4,188 4,846
Consumer loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,401 2,209
Consumer loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,577 781
Consumer loans | 90 days or more Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 0
Consumer loans | Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans $ 603,185 $ 607,585