Shareholders' Equity - Components Of Accumulated OCI (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative foreign currency translation adjustment	$ (63,937)	$ (43,010)
Unrealized loss on hedges, net	(22,918)	(27,891)
Accumulated other comprehensive loss	(86,855)	(70,901)
Deferred income taxes	$ 12,500	$ 15,100