v3.26.1
Business Segment Reporting - Schedule of Segment Income Statement (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Net interest income $ 212,784 $ 195,057 $ 421,401 $ 384,330
Provision for (recovery of) credit losses 3,535 (7) 6,681 2,913
Net interest income after provision for (recovery of) credit losses 209,249 195,064 414,720 381,417
Noninterest income 69,555 50,065 134,643 108,854
Noninterest expense 131,354 126,770 257,971 249,031
Income before income taxes 147,450 118,359 291,392 241,240
Income taxes 33,677 26,994 66,532 55,077
Net income 113,773 91,365 224,860 186,163
Assets under advice 17,273,398 14,245,820 17,273,398 14,245,820
Corporate And Eliminations        
Segment Reporting [Line Items]        
Net interest income 15,504 8,383 29,822 16,205
Provision for (recovery of) credit losses (8) 1,338 13 1,345
Net interest income after provision for (recovery of) credit losses 15,512 7,045 29,809 14,860
Noninterest income 3,012 2,270 4,001 3,769
Noninterest expense 12,404 13,624 22,959 24,080
Income before income taxes 6,120 (4,309) 10,851 (5,451)
Income taxes 493 (1,791) 651 (2,753)
Net income 5,627 (2,518) 10,200 (2,698)
Assets under advice 0 0 0 0
Consumer | Operating Segments        
Segment Reporting [Line Items]        
Net interest income 84,330 78,867 165,601 154,048
Provision for (recovery of) credit losses 2,826 (1,755) 5,019 130
Net interest income after provision for (recovery of) credit losses 81,504 80,622 160,582 153,918
Noninterest income 32,900 18,534 64,933 47,028
Noninterest expense 63,829 61,698 126,823 121,604
Income before income taxes 50,575 37,458 98,692 79,342
Income taxes 12,106 8,972 23,635 18,998
Net income 38,469 28,486 75,057 60,344
Assets under advice 0 0 0 0
Commercial | Operating Segments        
Segment Reporting [Line Items]        
Net interest income 112,984 107,830 226,027 214,120
Provision for (recovery of) credit losses 717 411 1,649 1,442
Net interest income after provision for (recovery of) credit losses 112,267 107,419 224,378 212,678
Noninterest income 11,536 10,843 22,268 21,220
Noninterest expense 41,032 38,757 80,655 78,127
Income before income taxes 82,771 79,505 165,991 155,771
Income taxes 19,159 18,439 38,433 36,052
Net income 63,612 61,066 127,558 119,719
Assets under advice 0 0 0 0
Wealth Management | Operating Segments        
Segment Reporting [Line Items]        
Net interest income (34) (23) (49) (43)
Provision for (recovery of) credit losses 0 (1) 0 (4)
Net interest income after provision for (recovery of) credit losses (34) (22) (49) (39)
Noninterest income 22,107 18,418 43,441 36,837
Noninterest expense 14,089 12,691 27,534 25,220
Income before income taxes 7,984 5,705 15,858 11,578
Income taxes 1,919 1,374 3,813 2,780
Net income 6,065 4,331 12,045 8,798
Assets under advice $ 17,273,398 $ 14,245,820 $ 17,273,398 $ 14,245,820