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Commitments and Contingencies - Schedule of Future Minimum Purchase Commitments (Detail)
$ in Thousands
Sep. 30, 2016
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2016 $ 11,651
2017 20,126
2018 2,305
2019 881
2020 and thereafter 276
Total future minimum other purchase commitments $ 35,239