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Financial Instruments and Fair Value (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Term Loan Facility | Carrying Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value $ 130,000 $ 130,000
Term Loan Facility | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 141,496 131,893
ABL Credit Facility | Carrying Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 0 2,566
ABL Credit Facility | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value $ 0 $ 2,258
Discount rate    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt instrument, measurement input 0.071