Stockholders' Equity - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	$ (949,142)
Net Change	66,406	$ 92,505
March 31, 2017	(882,736)
Foreign currency translation adjustment (“CTA”) gain (loss) [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	(1,031,129)
Net Change	106,938
March 31, 2017	(924,191)
Unrealized gain (loss) on cash flow hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	30,704
Net Change	(11,727)
March 31, 2017	18,977
Unrealized gain (loss) on available-for-sale securities [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	2,110
Net Change	(265)
March 31, 2017	1,845
Net investment hedge CTA gain (loss) [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	49,989
Net Change	(28,551)
March 31, 2017	21,438
Net actuarial gain (loss) on defined benefit plans [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	(816)
Net Change	11
March 31, 2017	(805)
Comprehensive income [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2016	(949,142)
Net Change	66,406
March 31, 2017	$ (882,736)