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Other Expense, Net - Details of Components of Other Expense, Net (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Other Income And Expenses [Abstract]        
Foreign currency losses $ (7,424) $ (3,720) $ (7,164) $ (4,323)
Unrealized gains (losses) related to forward contracts (305) (474) (493) 2,360
Loss on sale of receivables (425) (320) (798) (524)
Miscellaneous income 2,141   2,110 920
Other expense, net $ (6,013) $ (4,514) $ (6,345) $ (1,567)