Other Intangible Assets, Net (Finite Lived Intangible Asset Future Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 16,300	$ 13,900	$ 31,500	$ 27,900
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Remainder of 2018	31,135		31,135
2019	62,082		62,082
2020	60,307		60,307
2021	56,989		56,989
2022	55,521		55,521
Thereafter	226,086		226,086
Net	$ 492,120		$ 492,120		$ 475,613