v3.26.3
Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable $ 13,393,296   $ 13,007,316      
Allowance for credit losses 149,626 $ 149,321 150,212 $ 157,396 $ 129,159 $ 116,819
Nonaccrual loans 98,687   107,283     61,401
Loans 90 days past due and accruing 484   646      
Personal Banking            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 7,398,846   7,172,202      
Allowance for credit losses 45,950 45,423 47,457 48,168 39,805 43,464
Nonaccrual loans 23,833   21,713     15,311
Loans 90 days past due and accruing 482   602      
Personal Banking | Residential mortgage loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 2,984,204   3,100,780      
Allowance for credit losses 10,309 10,174 10,546 11,592 12,089 14,347
Nonaccrual loans 12,508   12,247     6,951
Loans 90 days past due and accruing 0   0      
Personal Banking | Home equity loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 1,496,559   1,507,532      
Allowance for credit losses 6,488 6,211 6,149 7,375 4,216 4,845
Nonaccrual loans 6,245   3,755     3,332
Loans 90 days past due and accruing 0   0      
Personal Banking | Vehicle loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 2,779,278   2,426,636      
Allowance for credit losses 25,009 24,744 25,945 26,498 21,234 22,389
Nonaccrual loans 4,913   5,493     4,829
Loans 90 days past due and accruing 0   0      
Personal Banking | Consumer loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 138,805   137,254      
Allowance for credit losses 4,144 4,294 4,817 2,703 2,266 1,883
Nonaccrual loans 167   218     199
Loans 90 days past due and accruing 482   602      
Commercial Banking            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 5,994,450   5,835,114      
Allowance for credit losses 103,676 103,898 102,755 109,228 89,354 73,355
Nonaccrual loans 74,854   85,570     46,090
Loans 90 days past due and accruing 2   44      
Commercial Banking | Commercial real estate loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 2,559,351   2,915,696      
Allowance for credit losses 47,640 54,091 58,234 69,515 53,624 44,328
Nonaccrual loans 39,537   56,223     36,183
Loans 90 days past due and accruing 0   0      
Commercial Banking | Commercial real estate loans - owner occupied            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 372,250   381,206      
Allowance for credit losses 4,790 5,016 4,679 5,022 4,130 3,882
Nonaccrual loans 811   1,262     784
Loans 90 days past due and accruing 0   0      
Commercial Banking | Commercial and industrial loans            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total loans receivable 3,062,849   2,538,212      
Allowance for credit losses 51,246 $ 44,791 39,842 $ 34,691 $ 31,600 25,145
Nonaccrual loans 34,506   28,085     $ 9,123
Loans 90 days past due and accruing $ 2   $ 44