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Line of Credit, Long-Term Debt and Capital Lease Obligations - Schedule of Aggregate Annual Maturities of Term Loan and 2023 Senior Notes (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
2017 $ 20,000
2018 30,000
2019 130,000
2020 0
Thereafter $ 750,000