v3.26.1
Revenue from Contracts with Customers (Schedule of Disaggregation of Revenue) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Non-interest income $ 183,828 $ 165,613 $ 359,679 $ 324,562
Total non-interest income from contracts with customers        
Disaggregation of Revenue [Line Items]        
Non-interest income 168,841 152,381 333,239 300,364
Total non-interest income from contracts with customers | Trust fees        
Disaggregation of Revenue [Line Items]        
Non-interest income 71,512 55,571 142,561 112,163
Total non-interest income from contracts with customers | Bank card transaction fees        
Disaggregation of Revenue [Line Items]        
Non-interest income 48,121 46,362 93,706 91,955
Total non-interest income from contracts with customers | Deposit account charges and other fees        
Disaggregation of Revenue [Line Items]        
Non-interest income 29,259 26,248 57,837 52,870
Total non-interest income from contracts with customers | Consumer brokerage services        
Disaggregation of Revenue [Line Items]        
Non-interest income 5,862 5,383 11,306 10,168
Total non-interest income from contracts with customers | Other non-interest income        
Disaggregation of Revenue [Line Items]        
Non-interest income 14,087 18,817 27,829 33,208
Other non-interest income (1)        
Disaggregation of Revenue [Line Items]        
Non-interest income [1] $ 14,987 $ 13,232 $ 26,440 $ 24,198
[1] This revenue is not within the scope of ASC 606, and includes fees relating to bond trading activities, loan fees and sales, derivative instruments, standby letters of credit and various other transactions.