Quarterly report pursuant to Section 13 or 15(d)

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

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Fair Value Measurements and Derivatives - Effects of Foreign Currency Options Designated as Cash Flow Hedges (Detail) (Cash Flow Hedging, Designated as Hedging Instrument, Foreign Exchange Option, 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 Option
       
Derivative Instruments, Gain (Loss) [Line Items]        
Loss recognized in other comprehensive loss - effective portion    $ (341) $ (1,157) $ (4,353)
Loss recognized in other income - ineffective portion    (22) (241) (320)
Amount reclassified from accumulated other comprehensive income (loss) into depreciation and amortization expense $ 329 $ 117 $ 608 $ 117