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Components of Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Comprehensive Income (Loss) [Line Items]    
Net Loss $ (27,562) $ (16,000)
Other comprehensive (loss):    
Foreign currency translation adjustment (567) (52)
Comprehensive (loss) $ (28,129) $ (16,052)