Intangible Assets (Schedule Of Estimated Aggregate Amortization Expense for Intangible Assets) (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2017	$ 3,929
2018	7,483
2019	7,179
2020	4,303
2021	4,123
2022	$ 3,356