Accumulated Other Comprehensive (Loss) Income Amount of Income Tax (Expense) Benefit Allocated to Component of Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Equity [Abstract]
Foreign Currency Translation, Other comprehensive (loss) income, before tax	$ (387,812)	$ (4,723)
Foreign Currency Translation, Income tax benefit (expense)	33,241	(535)
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	(354,571)	(5,258)
Pension and Postretirement Benefits, Other comprehensive (loss) income, before tax	6	(297)
Pension and Postretirement Benefits, Income tax benefit (expense)	(4)	(4)
Pension and Postretirement Benefits, Other comprehensive (loss) income, net of tax	2	(301)
Net investment hedge, before tax	85,577
Net investment hedge, income tax benefit (expense)	(31,531)
Net investment hedge	54,046	0
Other Comprehensive (Loss) Income, Reclassification Adjustment from AOCI on Derivatives, before Tax	834
Other Comprehensive (Loss) Income, Reclassification Adjustment from AOCI on Derivatives, Tax	307
Other Comprehensive (Loss) Income, Reclassification Adjustment from AOCI on Derivatives, Net of Tax	527
Other Comprehensive (Loss) Income, Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(6,319)
Other Comprehensive (Loss) Income, Unrealized Gain (Loss) on Derivatives Arising During Period, Tax		2,308
Unrealized loss on interest rate swap, Other comprehensive (loss) income, net of tax	527	(4,011)
Other, Other comprehensive (loss) income, before tax	18	54
Other, Income tax benefit (expense)	9	(19)
Other, Other comprehensive (loss) income, net of tax	$ 27	$ 35