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Debt - Schedule of Outstanding Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Total debt $ 150,719 $ 156,792
Less: debt issuance costs (335) (444)
Total debt, net of issuance costs 150,384 156,348
Less: current portion (9,861) (8,646)
Long-term portion of debt 140,523 147,702
Capital lease obligations    
Debt Instrument [Line Items]    
Total debt 3,982 2,374
Term loan    
Debt Instrument [Line Items]    
Total debt $ 146,737 $ 154,418