v3.26.3
Loans and Allowance for Credit Losses - Summary of Allocation of Allowance for Loan Loss as well as Activity in Allowance for Loan Loss Attributed to Various Segments in Loan (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance $ 213,724 $ 164,794 $ 169,530 $ 176,994  
Provision for credit losses or (recapture) 44,297 58,264 188,713 143,577  
Loans receivable allowance including provision losses or (recapture) 258,021 223,058 358,243 320,571  
Loans charged-off (57,794) (54,534) (170,535) (162,000)  
Recoveries of loans previously charged-off 7,877 5,289 20,396 15,242  
Net charge-offs (49,917) (49,245) (150,139) (146,758)  
Ending ALLL Balance 208,104 173,813 208,104 173,813  
Gross loans receivable 4,192,117   4,192,117   $ 3,756,829
Commercial and industrial loans          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance 6,882 8,754 8,757 11,051  
Provision for credit losses or (recapture) 1,418 1,125 1,385 1,912  
Loans receivable allowance including provision losses or (recapture) 8,300 9,879 10,142 12,963  
Loans charged-off (822) (1,641) (2,978) (5,286)  
Recoveries of loans previously charged-off 173 228 487 789  
Net charge-offs (649) (1,413) (2,491) (4,497)  
Ending ALLL Balance 7,651 8,466 7,651 8,466  
Construction, land and land development loans          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance 3,990 5,265 6,580 3,439  
Provision for credit losses or (recapture) (194) 1,181 (2,784) 3,007  
Loans receivable allowance including provision losses or (recapture) 3,796 6,446 3,796 6,446  
Loans charged-off 0 0 0 0  
Recoveries of loans previously charged-off 0 0 0 0  
Net charge-offs 0 0 0 0  
Ending ALLL Balance 3,796 6,446 3,796 6,446  
Gross loans receivable        
Real Estate Portfolio Segment | Residential real estate loans          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance 10,659 12,224 11,100 12,250  
Provision for credit losses or (recapture) 4,294 6,409 6,056 9,444  
Loans receivable allowance including provision losses or (recapture) 14,953 18,633 17,156 21,694  
Loans charged-off (1,068) (1,031) (3,285) (4,188)  
Recoveries of loans previously charged-off 2 2 16 98  
Net charge-offs (1,066) (1,029) (3,269) (4,090)  
Ending ALLL Balance 13,887 17,604 13,887 17,604  
Real Estate Portfolio Segment | Commercial real estate loans          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance 5,712 7,300 5,496 8,456  
Provision for credit losses or (recapture) (96) (1,017) 120 (2,177)  
Loans receivable allowance including provision losses or (recapture) 5,616 6,283 5,616 6,279  
Loans charged-off 0 0 0 0  
Recoveries of loans previously charged-off 0 0 0 4  
Net charge-offs 0 0 0 4  
Ending ALLL Balance 5,616 6,283 5,616 6,283  
Consumer and other loans:          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
ALLL beginning balance 186,481 131,251 137,597 141,798  
Provision for credit losses or (recapture) 38,875 50,566 183,936 131,391  
Loans receivable allowance including provision losses or (recapture) 225,356 181,817 321,533 273,189  
Loans charged-off (55,904) (51,862) (164,272) (152,526)  
Recoveries of loans previously charged-off 7,702 5,059 19,893 14,351  
Net charge-offs (48,202) (46,803) (144,379) (138,175)  
Ending ALLL Balance 177,154 $ 135,014 177,154 $ 135,014  
Gross loans receivable $ 1,653,863   $ 1,653,863   $ 1,328,461