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Debt and Financing Arrangements - Schedule of Principal Maturities of Long-Term Debt Including Interest On Capital Leases (Detail) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
2018 $ 13,099  
2019 17,465  
2020 68,297  
2021 18,043  
2022 16,607  
Thereafter 18,010  
Total 151,521  
Total 142,573 $ 132,916
Capital Lease Obligations [Member]    
Debt Instrument [Line Items]    
Less: Amounts Representing Interest on Capital Leases $ 8,948