Comprehensive Income - Summary of Components of AOCI (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 33,428
Other comprehensive (loss) income before reclassifications, tax	12,201
Reclassification adjustments, tax	(2,582)
Ending Balance	43,047
Beginning Balance	(564,217)
Ending Balance	(458,286)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(116,830)
Other comprehensive (loss) income before reclassifications, before tax	(21,218)
Ending Balance	(138,048)
Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(708)
Other comprehensive (loss) income before reclassifications, before tax	(18)
Ending Balance	(726)
Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(13,992)
Other comprehensive (loss) income before reclassifications, before tax	(26,730)
Reclassification adjustments, before tax	9,932
Ending Balance	(30,790)
Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(13,264)
Other comprehensive (loss) income before reclassifications, before tax	255
Reclassification adjustments, before tax	432
Ending Balance	(12,577)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(111,366)
Other comprehensive (loss) income before reclassifications, net of tax	(35,510)
Reclassification adjustments, net of tax	7,782
Ending Balance	$ (139,094)