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Goodwill And Other Intangible Assets (Schedule Of Amortization Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]    
Amortization of intangible assets $ 1,598 $ 2,381
Amortization of capitalized purchased software costs 369 395
Amortization of debt costs 115 115
Total amortization $ 2,082 $ 2,891