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Commitments and Contingencies (Schedule Of Commitments And Contingencies) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Loss Contingencies [Line Items] |  |
Commitments and contingent liabilities |  |
Commitments to extend credit |  |
Loss Contingencies [Line Items] |  |
Commitments and contingent liabilities | 11,203,778 |
Forward sales commitments |  |
Loss Contingencies [Line Items] |  |
Commitments and contingent liabilities | 68,244 | 39,500
Commitments to originate residential mortgage loans held for sale |  |
Loss Contingencies [Line Items] |  |
Commitments and contingent liabilities | 40,745 | $ 20,600
Standby letters of credit |  |
Loss Contingencies [Line Items] |  |
Commitments and contingent liabilities | $ 196,748 |

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