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Revenue from Contracts with Customers (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | $ 165,613 | $ 152,244 | $ 324,562 | $ 301,092
Total non-interest income from contracts with customers |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 152,381 | 141,896 | 300,364 | 279,006
Total non-interest income from contracts with customers | Trust fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 55,571 | 52,291 | 112,163 | 103,396
Total non-interest income from contracts with customers | Bank card transaction fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 46,362 | 47,477 | 91,955 | 94,407
Total non-interest income from contracts with customers | Deposit account charges and other fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 26,248 | 25,325 | 52,870 | 49,476
Total non-interest income from contracts with customers | Consumer brokerage services |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 5,383 | 4,478 | 10,168 | 8,886
Total non-interest income from contracts with customers | Other non-interest income |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income |  | 18,817 | 12,325 | 33,208 | 22,841
Other non-interest income (1) |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Non-interest income | [1] | $ 13,232 | $ 10,348 | $ 24,198 | $ 22,086
[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.

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