Stockholders' Equity - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	$ (785,189)
Net Change	69,144	$ 66,406
March 31, 2018	(718,169)
Foreign currency translation adjustment (“CTA”) gain (loss) [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	(576,860)
Net Change	145,851
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
March 31, 2018	(431,009)
Unrealized gain (loss) on cash flow hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	(24,191)
Net Change	(4,080)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
March 31, 2018	(28,271)
Net investment hedge CTA gain (loss) [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	(185,303)
Net Change	(72,635)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
March 31, 2018	(257,938)
Net actuarial gain (loss) on defined benefit plans [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	(959)
Net Change	8
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
March 31, 2018	(951)
Comprehensive income [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	(785,189)
Net Change	69,144
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(2,124)
March 31, 2018	(718,169)
ASU 2016-01 [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Cumulative effect on retained earnings	2,100
ASU 2016-01 [Member] \| Unrealized gain (loss) on available-for-sale securities [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
December 31, 2017	2,124
Net Change	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(2,124)
March 31, 2018	$ 0

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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