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Basis of Presentation - Narrative (Details)
Feb. 27, 2021
USD ($)
Jul. 13, 2020
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Aug. 07, 2017
USD ($)
Line of Credit Facility [Line Items]              
Restricted cash     $ 0 $ 922,000 $ 1,875,000 $ 656,000  
First Lien Term Loan              
Line of Credit Facility [Line Items]              
Line of credit facility             $ 45,000,000.0
First Lien Term Loan | Scenario, Forecast              
Line of Credit Facility [Line Items]              
Line of credit facility $ 15,000,000.0            
Revolving Facility              
Line of Credit Facility [Line Items]              
Line of credit facility     30,000,000.0        
Borrowings outstanding     $ 0        
Subsequent Event | First Lien Term Loan              
Line of Credit Facility [Line Items]              
Fixed charge coverage ratio   1.00