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Long-Term Debt - Schedule of Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Apr. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]      
Less current debt financing fees $ (556)    
Less noncurrent debt financing fees (1,111)    
Less: Debt financing fees (1,667)    
Current portion of debt 49,822   $ 45,984
Long-term debt 191,039   $ 198,768
Total 240,861    
2019 Credit Agreement      
Debt Instrument [Line Items]      
Less: Debt financing fees   $ (300)  
Secured Debt | 2019 Credit Agreement      
Debt Instrument [Line Items]      
Long term debt, current, gross 10,500    
Long term debt, noncurrent, gross 192,150    
Long term debt, gross 202,650    
Line of Credit | 2019 Credit Agreement | Revolving Credit Facility      
Debt Instrument [Line Items]      
Long term debt, current, gross 39,878    
Long term debt, noncurrent, gross 0    
Long term debt, gross $ 39,878