v3.26.3
Loans Receivable and Allowance for Credit Losses - Aging Loans Held for Investment by Portfolio Segment and Class (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans $ 20,184,393 $ 19,515,513
Non-accrual 140,142 78,420
Non-accrual loans with no related allowance 92,962 67,506
Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,604,830 7,398,792
Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,841,754 3,667,337
Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 694,807 662,112
Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,911,472 1,974,324
Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 162,565 112,451
30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 15,233 27,508
60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,190 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 20,021,828 19,403,062
Mortgage loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 14,052,863 13,702,565
Non-accrual 30,593 43,345
Non-accrual loans with no related allowance 10,304 38,995
Mortgage loans | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,604,830 7,398,792
Non-accrual 21,034 26,856
Non-accrual loans with no related allowance 745 22,506
Mortgage loans | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,841,754 3,667,337
Non-accrual 1,831 2,268
Non-accrual loans with no related allowance 1,831 2,268
Mortgage loans | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 694,807 662,112
Non-accrual 1,781 5,159
Non-accrual loans with no related allowance 1,781 5,159
Mortgage loans | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,911,472 1,974,324
Non-accrual 5,947 9,062
Non-accrual loans with no related allowance 5,947 9,062
Mortgage loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 48,001 72,450
Mortgage loans | Total Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 22,785 42,508
Mortgage loans | Total Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,831 3,200
Mortgage loans | Total Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,781 5,159
Mortgage loans | Total Past Due | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 21,604 21,583
Mortgage loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 11,487 23,996
Mortgage loans | 30-59 Days Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,561 15,652
Mortgage loans | 30-59 Days Past Due | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 0 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 9,926 8,344
Mortgage loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,921 5,109
Mortgage loans | 60-89 Days Past Due | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 190 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 5,731 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 14,004,862 13,630,115
Mortgage loans | Current | Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 7,582,045 7,356,284
Mortgage loans | Current | Multi-family    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,839,923 3,664,137
Mortgage loans | Current | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 693,026 656,953
Mortgage loans | Current | Residential    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 1,889,868 1,952,741
Commercial loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 5,520,560 5,200,517
Non-accrual 107,691 33,219
Non-accrual loans with no related allowance 80,800 26,655
Commercial loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 108,355 35,155
Commercial loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 187 1,303
Commercial loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 477 633
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 5,412,205 5,165,362
Consumer loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 610,970 612,431
Non-accrual 1,858 1,856
Non-accrual loans with no related allowance 1,858 1,856
Consumer loans | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 6,209 4,846
Consumer loans | 30-59 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 3,559 2,209
Consumer loans | 60-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total gross loans 792 781
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 $ 604,761 $ 607,585