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Commitments and Loss Contingency - Schedule of Future Minimum Rental Payments under Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Operating Leases Future Minimum Payments Due [Abstract]  
2014 (remaining nine months) $ 596
2015 1,606
2016 1,339
2017 918
2018 707
2019 223
2020 and thereafter   
Total minimum payments required $ 5,389