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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Equity [Abstract]
Foreign Currency Translation, Other comprehensive (loss) income, before tax	$ 59,462	$ (613)	$ (328,350)	$ (5,336)
Foreign Currency Translation, Income tax benefit (expense)	(3,238)	(191)	30,003	(726)
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	56,224	(804)	(298,347)	(6,062)
Pension and Postretirement Benefits, Other comprehensive (loss) income, before tax	5	(162)	11	(459)
Pension and Postretirement Benefits, Income tax benefit (expense)	(3)	(5)	(7)	(9)
Pension and Postretirement Benefits, Other comprehensive (loss) income, net of tax	2	(167)	4	(468)
Net investment hedge, Other comprehensive (loss) income, before tax	(17,307)		68,270
Net investment hedge, Income tax benefit (expense)	6,377		(25,154)
Net investment hedge, Other comprehensive (loss) income, net of tax	(10,930)	0	43,116	0
Interest rate swap, Other comprehensive (loss) income, before tax	834	(10,101)	1,668	(16,420)
Interest rate swap, Income tax benefit (expense)	(308)	3,691	(615)	5,999
Interest rate swap, Other comprehensive (loss) income, net of tax	526	(6,410)	1,053	(10,421)
Other, Other comprehensive (loss) income, before tax	3	57	21	111
Other, Income tax benefit (expense)	0	(20)	9	(39)
Other, Other comprehensive (loss) income, net of tax	$ 3	$ 37	$ 30	$ 72