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Fair Value Measurement (Schedule Of Reconciliation Of Assets And Liabilities Measured At Fair Value Using Significant Unobservable Inputs (Level 3) On A Recurring Basis) (Details) - Level 3 - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Junior subordinated debentures, at fair value |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period | $ (6,679) | $ (2,456)
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period | 25,812 | (12,703)
Junior subordinated debentures, at fair value |  |
Beginning Balance | (323,639) | (293,081)
Change included in earnings | (6,679) | (2,456)
Change in fair values included in comprehensive income/loss | 25,812 | (12,703)
Purchases and issuances | 0 | 0
Sales and settlements | 6,785 | 2,521
Ending Balance | (297,721) | (305,719)
Interest rate lock commitments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period | 137 | (853)
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period | 0 | 0
Interest rate lock commitments, net |  |
Beginning Balance | 32 | 4,641
Change included in earnings | (32) | (4,270)
Change in fair values included in comprehensive income/loss | 0 | 0
Purchases and issuances | 338 | 4,651
Sales and settlements | (201) | (5,875)
Ending Balance | 137 | (853)
Residential mortgage servicing rights |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period | (2,937) | 40,149
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period | 0 | 0
Residential mortgage servicing rights |  |
Beginning balance | 185,017 | 123,615
Change included in earnings | (7,818) | 34,802
Change in fair values included in comprehensive income/loss | 0 | 0
Purchases and issuances | 1,601 | 7,390
Sales and settlements | 0 | 0
Ending balance | $ 178,800 | $ 165,807

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