Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35706170&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 4D

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624177-113959

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Derivative Instruments - Additional Information (Detail) (USD $)				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2014 Foreign Exchange Forward	Dec. 31, 2013 Foreign Exchange Forward	Sep. 30, 2013 Foreign Exchange Forward	Sep. 30, 2014 Foreign Exchange Forward Designated As Hedging Instrument	Sep. 30, 2013 Foreign Exchange Forward Designated As Hedging Instrument	Sep. 30, 2014 Foreign Exchange Forward Designated As Hedging Instrument	Sep. 30, 2013 Foreign Exchange Forward Designated As Hedging Instrument	Sep. 30, 2014 Foreign Exchange Forward Not Designated As Hedging Instrument	Sep. 30, 2013 Foreign Exchange Forward Not Designated As Hedging Instrument	Sep. 30, 2014 Foreign Exchange Forward Not Designated As Hedging Instrument	Sep. 30, 2013 Foreign Exchange Forward Not Designated As Hedging Instrument	Sep. 30, 2014 Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Maximum term for foreign currency forward exchange contracts												18 months
Notional amount of foreign currency forward exchange contracts	$ 1,110,000,000	$ 1,550,000,000	$ 1,460,000,000
Net (loss) gain reclassified from accumulated other comprehensive loss to the consolidated statements of operations for derivatives designated as hedging instruments				(3,328,000)	(321,000)	(8,925,000)	482,000
Net gain (loss) recognized in the consolidated statements of operations for derivatives not designated as hedging instruments								$ (26,340,000)	$ 24,136,000	$ (15,885,000)	$ 6,846,000