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Schedule of Future Minimum Lease Payments (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Sale Leaseback Transaction [Line Items]  
Remaining six-months of 2015 $ 1,436
2016 2,875
2017 2,875
2018 2,994
2019 3,213
Thereafter 11,433
Total future lease payments $ 24,826