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Commitments and Contingencies - Future Minimum Rental Payments Required under Operating Leases that have Initial or Remaining Non-Cancelable Lease Terms in Excess of One Year (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]  
Fiscal year ended March 31, 2015 $ 444
Fiscal year ended March 31, 2016 979
Fiscal year ended March 31, 2017 984
Fiscal year ended March 31, 2018 1,001
Fiscal year ended March 31, 2019 1,031
Thereafter 2,527
Total $ 6,966