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Impact from Foreign Exchange Derivative Instruments Designated in Cash Flow Hedges (Detail) - Jun. 30, 2015 - Cash Flow Hedge - USD ($)
$ in Thousands
Total
Total
Derivative Instruments, Gain (Loss) [Line Items]    
(Loss) gain recorded in accumulated other comprehensive loss $ (329) $ 1,898
Gain reclassified from accumulated other comprehensive loss into earnings $ 1,366 $ 1,554