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Goodwill And Other Intangible Assets (Schedule Of Amortization Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Goodwill And Other Intangible Assets [Abstract]        
Amortization of intangible assets $ 2,368 $ 2,736 $ 7,101 $ 7,698
Amortization of capitalized purchased software costs     836 798
Amortization of debt costs     2,602 643
Total amortization     $ 10,539 $ 9,139