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Property and Equipment - Future Minimum Payments Under Non-Cancelable Operating Leases (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
Leases [Abstract]  
2017 $ 23,954
2018 20,676
2019 17,206
2020 13,470
2021 8,211
2022 and thereafter 43,526
Total minimum obligations $ 127,043