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Debt - Long- Term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total debt $ 70,974 $ 83,179
Less current portion 0 (5,235)
Long-term debt, less current portion $ 70,974 77,944
Senior Secured Asset-Based Loan    
Debt Instrument [Line Items]    
Interest rate (percent) 4.23%  
Term Loan, net    
Debt Instrument [Line Items]    
Total debt $ 0 $ 83,179
Interest rate (percent)   4.80%
Senior Secured Asset-Based Loan    
Debt Instrument [Line Items]    
Total debt $ 70,974 $ 0
Senior Debt | Term Loan, net    
Debt Instrument [Line Items]    
Unamortized discount   $ 697