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Long-Term Deferred Expenses - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Deferred Revenue Disclosure [Abstract]      
Amortization of the long-term deferred expenses allocated to the cost of revenues $ 66 $ 0 $ 0