Goodwill And Other Intangible Assets (Schedule Of Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Goodwill And Other Intangible Assets [Abstract]
Amortization of intangible assets	$ 2,481	$ 2,804
Amortization of capitalized purchased software costs	276	293
Amortization of debt costs	196	189
Total amortization	$ 2,953	$ 3,286