Net Gains (Losses) Recorded in Other Income and Consolidated Statements of Income (Expense), Net Relating to Foreign Exchange Contracts Not Designated as Hedges (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2014 USD ($)
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Gains/(Losses) recognized in other income, net	$ 3,836

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration