Summary of Derivative Financial Instruments (Detail) (Foreign Exchange Contract, USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Derivatives Designated as Hedges:
Asset Derivatives Fair Value	$ 17,936	$ 9,291
Liability Derivatives Fair Value	16,476	7,940
Accounts Receivable - other
Derivatives Designated as Hedges:
Asset Derivatives Fair Value	15,922	6,066
Other Assets
Derivatives Designated as Hedges:
Asset Derivatives Fair Value	2,014	3,225
Accounts Payable
Derivatives Designated as Hedges:
Liability Derivatives Fair Value	8,684	2,207
Other Liabilities
Derivatives Designated as Hedges:
Liability Derivatives Fair Value	$ 7,792	$ 5,733