Fair Value Measurements (Assets for which Nonrecurring Changes in Fair Value have been Recorded) (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Total assets at fair value | $ 9,051,205 | $ 9,348,807 |
| Fair Value, Inputs, Level 3 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Total assets at fair value | 81,034 | 183,771 |
| Collateral dependent loans | Fair Value, Inputs, Level 3 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Total assets at fair value | 79,739 | 183,259 |
| OREO | Fair Value, Inputs, Level 3 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Total assets at fair value | $ 1,295 | $ 512 |