Accumulated Other Comprehensive (Loss) Income Amount of Income Tax (Expense) Benefit Allocated to Component of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity [Abstract]
Foreign Currency Translation, Other comprehensive (loss) income, before tax	$ 99,281	$ (387,812)
Foreign Currency Translation, Income tax benefit (expense)	(371)	33,241
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	98,910	(354,571)
Pension and Postretirement Benefits, Other comprehensive (loss) income, before tax	4	6
Pension and Postretirement Benefits, Income tax benefit (expense)	(3)	(4)
Pension and Postretirement Benefits, Other comprehensive (loss) income, net of tax	1	2
Net investment hedge, Other comprehensive (loss) income, before tax	(15,121)	85,577
Net investment hedge, Income tax benefit (expense)	5,597	(31,531)
Net investment hedge, Other comprehensive (loss) income, net of tax	(9,524)	54,046
Interest rate swap, Other comprehensive (loss) income, before tax	834	834
Interest rate swap, Income tax benefit (expense)	(309)	(307)
Interest rate swap, Other comprehensive (loss) income, net of tax	525	527
Other, Other comprehensive (loss) income, before tax	(4)	18
Other, Income tax benefit (expense)	0	9
Other, Other comprehensive (loss) income, net of tax	$ (4)	$ 27