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Other Income (Expense) , Net - Details of Components of Other Income Expense, Net (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Other Income And Expenses [Abstract]        
Foreign currency gains (losses) $ 813 $ (193) $ (6,351) $ (4,516)
Unrealized gains (losses) related to forward contracts 401 1,476 (92) 3,836
Loss on sale of receivables (437) (165) (1,235) (689)
Miscellaneous income 183   2,293 920
Other income (expense), net $ 960 $ 1,118 $ (5,385) $ (449)