Derivative Instruments (Schedule Of Notional Amounts Of Derivative Instruments) (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivative [Line Items] | ||
| Derivative, Notional Amount | $ 4,611,075 | $ 4,631,381 |
| Interest rate swaps | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 1,953,737 | 2,065,400 |
| Interest Rate Floor | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 2,000,000 | 2,000,000 |
| Interest rate caps | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 76,785 | 37,488 |
| Credit risk participation agreements | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 540,569 | 503,196 |
| Foreign exchange contracts | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 18,913 | 16,978 |
| Mortgage loan commitments | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 10,346 | 3,060 |
| Mortgage loan forward sale contracts | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 225 | 1,759 |
| Forward TBA contracts | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | $ 10,500 | $ 3,500 |