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Long-term Debt and Financing Arrangements - Maturities of Long-term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Long-term debt $ 285,510 $ 272,641
Less portion due within one year (9,855) (9,928)
Total long-term debt, net of debt issuance costs $ 275,655 262,713
Term loan, net of debt issuance costs    
Debt Instrument [Line Items]    
Debt instrument, effective interest rate (as a percent) 5.25%  
Long-term debt $ 140,996 146,106
Finance leases    
Debt Instrument [Line Items]    
Debt instrument, effective interest rate (as a percent) 1.60%  
Long-term debt $ 14 35
Revolving Credit Facility | Revolver loan    
Debt Instrument [Line Items]    
Debt instrument, effective interest rate (as a percent) 5.25%  
Long-term debt $ 144,500 $ 126,500