Derivative Instruments Measured at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	$ 4,628	[1]	$ 15,092	[2]
Foreign currency contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	4,181	[1]	14,806	[2]
Total Fair Value, Derivative liabilities	5,175	[1]	(5,422)	[2]
Interest rate swap [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	447	[1]	286	[2]
Fair Value of Derivatives Designated Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	2,597	[1]	9,619	[2]
Fair Value of Derivatives Designated Designated as Hedging Instrument [Member] | Foreign currency contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	2,150	[1]	9,333	[2]
Total Fair Value, Derivative liabilities	3,850	[1]	(3,368)	[2]
Fair Value of Derivatives Designated Designated as Hedging Instrument [Member] | Interest rate swap [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	447	[1]	286	[2]
Fair Value of Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	2,031	[1]	5,473	[2]
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign currency contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative assets	2,031	[1]	5,473	[2]
Total Fair Value, Derivative liabilities	$ 1,325	[1]	$ (2,054)	[2]

[1] Derivative assets are recorded to Prepaid expenses and other current assets in the Consolidated Balance Sheet.

[2] Derivative liabilities are recorded as Other current liabilities in the Consolidated Balance Sheet.