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Commitments and Contingencies - Schedule of Future Minimum Annual Commitments Under Operating Leases (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2018 $ 8,087
2019 6,927
2020 5,440
2021 3,129
2022 1,436
Thereafter $ 285