Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements and Derivatives - Effects of Foreign Currency Forward Contracts Designated as Cash Flow Hedges (Detail)

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Fair Value Measurements and Derivatives - Effects of Foreign Currency Forward Contracts Designated as Cash Flow Hedges (Detail) (Cash Flow Hedging, Designated as Hedging Instrument, Foreign Exchange Forward, USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Cash Flow Hedging | Designated as Hedging Instrument | Foreign Exchange Forward
       
Derivative Instruments, Gain (Loss) [Line Items]        
Loss recognized in other comprehensive loss - effective portion $ 88 $ (8,747) $ (988) $ (7,886)
Gain (loss) recognized in other income (expense) - ineffective portion    (2) (1) 66
Amount reclassified from accumulated other comprehensive income (loss) into depreciation and amortization expense $ (64) $ (20) $ (117) $ (20)