Accumulated Other Comprehensive (Loss) Income Amount of Income Tax (Expense) Benefit Allocated to Component of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Equity [Abstract]
Foreign currency translation, Other comprehensive (loss) income, before tax	$ (451,781)	$ (163,536)		$ 29,895
Foreign currency translation, Income tax benefit (expense)	38,782	(5,273)		1,809
Foreign currency translation, Other comprehensive (loss) income, net of tax	(412,999)	(168,809)		31,704
Pension and other postretirement benefits, Other comprehensive (loss) income, before tax	(751)	(772)		(781)
Pension and other postretirement benefits, Income tax benefit (expense)	(7)	285		279
Pension and other postretirement benefits, Other comprehensive (loss) income, net of tax	758	487		502
Net investment hedge, Other comprehensive (loss) income, before tax	80,746	17,971	[1]	0
Net investment hedge, Income tax benefit (expense)	(29,885)	(6,587)		0
Net investment hedge, Other comprehensive (loss) income, net of tax	50,861	11,384		0
Interest rate swap, Other comprehensive (loss) income, before tax	3,336	(33,091)	[2]	0
Interest rate swap, Income tax benefit (expense)	(1,235)	12,129		0
Interest rate swap, Other comprehensive (loss) income, net of tax	2,101	(20,962)		0
Other, Other comprehensive (loss) income, before tax	19	217		214
Other, Income tax benefit (expense)	10	(81)		(79)
Other, Other comprehensive (loss) income, net of tax	$ 29	$ 136		$ 135

[1] Other comprehensive income, before tax, for the year ended December 31, 2014 includes $12.8 million related to the revaluation of our euro-denominated senior notes and a $5.2 million gain on the settlement of related foreign currency forward contracts, both of which were designated as a hedge of our net investment in foreign operations. See Note 14, “Long-Term Debt” for additional information about these transactions.

[2] Other comprehensive (loss), before tax, for the year ended December 31, 2014 includes a realized loss of ($33.4) million on the settlement of our forward starting interest rate swap which was designated and accounted for as a cash flow hedge under ASC 815, Derivatives and Hedging. See Note 14, “Long-Term Debt” for additional information about this interest rate swap.