Accumulated Other Comprehensive (Loss) Income Components and Activity in Accumulated Other Comprehensive (Loss) Income Net of Deferred Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance					$ 3,401,313	$ 1,488,635
Other comprehensive income (loss), before reclassifications		$ 40,317	[1]	$ (70,933)	85,113	(326,161)
Amounts reclassified from accumulated other comprehensive (loss) income		731		529	2,202	1,613
Total other comprehensive income (loss), net of tax		41,048		(70,404)	87,315	(324,548)
Other comprehensive (income) loss attributable to noncontrolling interests		(23)		397	(458)	548
Ending Balance		3,451,433		3,274,514	3,451,433	3,274,514
Foreign Currency Translation
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance		(416,636)		(351,001)	(463,914)	(52,835)
Other comprehensive income (loss), before reclassifications		47,712	[1]	(67,526)	95,425	(365,870)
Amounts reclassified from accumulated other comprehensive (loss) income		0		0	0	27
Total other comprehensive income (loss), net of tax		47,712		(67,526)	95,425	(365,843)
Other comprehensive (income) loss attributable to noncontrolling interests		(23)		397	(458)	548
Ending Balance		(368,947)		(418,130)	(368,947)	(418,130)
Pension and Postretirement Benefits
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance		(338)		4	(758)	0
Other comprehensive income (loss), before reclassifications		0	[1]	0	0	0
Amounts reclassified from accumulated other comprehensive (loss) income	[2]	206		2	626	6
Total other comprehensive income (loss), net of tax		206		2	626	6
Other comprehensive (income) loss attributable to noncontrolling interests		0		0	0	0
Ending Balance		(132)		6	(132)	6
Net Investment Hedge
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance		59,328		54,500	62,245	11,384
Other comprehensive income (loss), before reclassifications		(7,395)	[1]	(3,407)	(10,312)	39,709
Amounts reclassified from accumulated other comprehensive (loss) income		0		0	0	0
Total other comprehensive income (loss), net of tax		(7,395)		(3,407)	(10,312)	39,709
Other comprehensive (income) loss attributable to noncontrolling interests		0		0	0	0
Ending Balance		51,933		51,093	51,933	51,093
Interest Rate Swap
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance		(17,810)		(19,909)	(18,861)	(20,962)
Other comprehensive income (loss), before reclassifications		0	[1]	0	0	0
Amounts reclassified from accumulated other comprehensive (loss) income	[3]	525		527	1,576	1,580
Total other comprehensive income (loss), net of tax		525		527	1,576	1,580
Other comprehensive (income) loss attributable to noncontrolling interests		0		0	0	0
Ending Balance		(17,285)		(19,382)	(17,285)	(19,382)
Accumulated Other Comprehensive (Loss) Income
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance		(375,456)		(316,406)	(421,288)	(62,413)
Total other comprehensive income (loss), net of tax					86,857	(324,000)
Ending Balance		$ (334,431)		$ (386,413)	$ (334,431)	$ (386,413)

[1] Foreign currency translation includes an adjustment of $12.5 million to reduce our investment in the Windfield Holdings Pty Ltd joint venture related to the three month period ended March 31, 2016. See Note 1, “Basis of Presentation,” for further details.

[2] The pre-tax portion of amounts reclassified from accumulated other comprehensive (loss) income consists of amortization of prior service benefit, which is a component of pension and postretirement benefits cost (credit). See Note 13, “Pension Plans and Other Postretirement Benefits.”

[3] The pre-tax portion of amounts reclassified from accumulated other comprehensive (loss) income is included in interest expense.