Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Estimable Useful Lives) (Details) - USD ($) $ in Thousands |
Sep. 30, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 53,431 | $ 52,140 |
| Accumulated Amortization | (41,432) | (39,866) |
| Valuation Allowance | 0 | (304) |
| Net Amount | 11,999 | 11,970 |
| Core Deposit Premium | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 31,270 | 31,270 |
| Accumulated Amortization | (30,499) | (30,266) |
| Valuation Allowance | 0 | 0 |
| Net Amount | 771 | 1,004 |
| Mortgage Servicing Rights | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 22,161 | 20,870 |
| Accumulated Amortization | (10,933) | (9,600) |
| Valuation Allowance | 0 | (304) |
| Net Amount | $ 11,228 | $ 10,966 |