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Commitments and Contingencies - Future Minimum Payments Under Operating Leases (Detail)
$ in Thousands
Mar. 31, 2015
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2015(remaining nine months) $ 1,495
2016 1,791
2017 1,393
Thereafter 10,398
Operating Leases, Future Minimum Payments Due, Total $ 15,077