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Asset Backed Loan (ABL) Credit Facility (Details) - ABL Credit Facility - Revolving Credit Facility
6 Months Ended
Feb. 23, 2018
USD ($)
Jun. 30, 2020
USD ($)
Debt Instrument [Line Items]    
Debt instrument, term 5 years  
Total commitments $ 100,000,000.0  
Amount available for letters of credit (up to) $ 10,000,000.0  
Fixed charges ratio   1.1
Available borrowing capacity   $ 38,000,000.0
Letters of credit outstanding   $ 1,000,000.0
Minimum    
Debt Instrument [Line Items]    
Commitment fee percentage 0.25%  
Maximum    
Debt Instrument [Line Items]    
Commitment fee percentage 0.375%  
CB Floating Rate | Minimum    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.00%  
CB Floating Rate | Maximum    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.50%  
Eurodollar | Minimum    
Debt Instrument [Line Items]    
Basis spread on variable rate 2.00%  
Eurodollar | Maximum    
Debt Instrument [Line Items]    
Basis spread on variable rate 2.50%