v3.26.3
Loans Receivable, Allowance for Credit Losses and Credit Quality - Aging of the Amortized Cost of Loans Receivables (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Loans Receivable and ACL    
Total loans, gross $ 6,777,209 $ 5,994,016
Nonaccrual 36,076 42,735
Current Loans    
Loans Receivable and ACL    
Total loans, gross 6,726,370 5,862,149
30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 12,640 84,398
60-89 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 2,123 4,734
Residential real estate, portfolio    
Loans Receivable and ACL    
Total loans, gross 1,429,780 1,329,758
Residential real estate, portfolio | One to four-family residential    
Loans Receivable and ACL    
Total loans, gross 1,252,252 1,177,156
Nonaccrual 3,255 2,712
Residential real estate, portfolio | One to four-family residential | Current Loans    
Loans Receivable and ACL    
Total loans, gross 1,248,128 1,166,731
Residential real estate, portfolio | One to four-family residential | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 461 7,232
Residential real estate, portfolio | One to four-family residential | 60-89 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 408 481
Residential real estate, portfolio | Home equity    
Loans Receivable and ACL    
Total loans, gross 177,528 152,602
Nonaccrual 1,546 1,359
Residential real estate, portfolio | Home equity | Current Loans    
Loans Receivable and ACL    
Total loans, gross 174,905 150,413
Residential real estate, portfolio | Home equity | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 1,077 445
Residential real estate, portfolio | Home equity | 60-89 Days Past Due    
Loans Receivable and ACL    
Total loans, gross   385
Commercial real estate and Commercial, portfolio    
Loans Receivable and ACL    
Total loans, gross 4,873,570 4,179,812
Commercial real estate, portfolio    
Loans Receivable and ACL    
Total loans, gross 2,889,706 2,441,570
Commercial real estate, portfolio | Commercial real estate    
Loans Receivable and ACL    
Total loans, gross 2,304,739 1,924,043
Nonaccrual 13,587 855
Commercial real estate, portfolio | Commercial real estate | Current Loans    
Loans Receivable and ACL    
Total loans, gross 2,290,430 1,923,108
Commercial real estate, portfolio | Commercial real estate | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 722 80
Commercial real estate, portfolio | Multi-family residential    
Loans Receivable and ACL    
Total loans, gross 584,967 517,527
Commercial real estate, portfolio | Multi-family residential | Current Loans    
Loans Receivable and ACL    
Total loans, gross 584,967 517,527
Commercial, portfolio | Construction & land development    
Loans Receivable and ACL    
Total loans, gross 846,453 730,573
Nonaccrual   10
Commercial, portfolio | Construction & land development | Current Loans    
Loans Receivable and ACL    
Total loans, gross 841,273 730,563
Commercial, portfolio | Construction & land development | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 5,180  
Commercial, portfolio | Commercial and industrial    
Loans Receivable and ACL    
Total loans, gross 1,137,411 1,007,669
Nonaccrual 16,686 36,251
Commercial, portfolio | Commercial and industrial | Current Loans    
Loans Receivable and ACL    
Total loans, gross 1,119,870 895,662
Commercial, portfolio | Commercial and industrial | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 726 73,225
Commercial, portfolio | Commercial and industrial | 60-89 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 129 2,531
Consumer, portfolio    
Loans Receivable and ACL    
Total loans, gross 235,761 203,497
Nonaccrual 1,002 1,548
Consumer, portfolio | Current Loans    
Loans Receivable and ACL    
Total loans, gross 228,699 197,196
Consumer, portfolio | 30-59 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 4,474 3,416
Consumer, portfolio | 60-89 Days Past Due    
Loans Receivable and ACL    
Total loans, gross 1,586 1,337
Mortgage warehouse, portfolio    
Loans Receivable and ACL    
Total loans, gross 238,098 280,949
Mortgage warehouse, portfolio | Current Loans    
Loans Receivable and ACL    
Total loans, gross $ 238,098 $ 280,949