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Future Payments for Other Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Commitments And Contingencies Disclosure [Abstract]  
2016 $ 1,102us-gaap_OtherCommitmentDueInNextTwelveMonths
2017 545us-gaap_OtherCommitmentDueInSecondYear
Total minimum payments $ 1,647us-gaap_OtherCommitment