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Acquisition - Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives (Detail) (USD $)
In Thousands, unless otherwise specified
1 Months Ended
Aug. 31, 2013
Mar. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets $ 268 $ 2,806
Current Developed Technology [Member]
   
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets   2,208
Estimated useful life of finite lived intangible assets   9 years
Trademarks and Trade Names [Member]
   
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets   $ 598
Estimated useful life of finite lived intangible assets   3 years