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Debt - Term Loan Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
May 01, 2021
May 31, 2021
Jun. 30, 2014
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]                    
Gain (Loss) on Extinguishment of Debt       $ (1,217)   $ (1,217) $ 0      
Financing costs incurred       2,578   2,578   $ 358    
Interest expense       2,253 $ 3,314 5,550 6,656      
Term Loan                    
Debt Instrument [Line Items]                    
Term loan, amount borrowed     $ 150,000             $ 12,000
Effective interest rate     7.00%              
Interest expense       $ 2,300 $ 3,300 $ 5,600 $ 6,600      
Stated interest rate       6.25%   6.25%   8.25%    
Term Loan | Term Loan Due 2023 [Member]                    
Debt Instrument [Line Items]                    
Repayments of Long-term Debt $ 154,700                  
Gain (Loss) on Extinguishment of Debt           $ 1,200        
Payment for Debt Extinguishment or Debt Prepayment Cost           1,000        
Write off of Deferred Debt Issuance Cost           $ 200        
Term Loan | Term Loan Due 2027 [Member]                    
Debt Instrument [Line Items]                    
Term loan, amount borrowed $ 160,000                  
Debt instrument, term   6 years                
Financing costs incurred   $ 400                
Term Loan | Aircraft Term Loan Due 2026 [Member]                    
Debt Instrument [Line Items]                    
Term loan, amount borrowed   $ 9,000                
Debt instrument, term   5 years                
Financing costs incurred   $ 100                
Stated interest rate       6.25%   6.25%        
Debt Instrument, Periodic Payment, Total   $ 100                
Term Loan | London Interbank Offered Rate (LIBOR) | Term Loan Due 2027 [Member]                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   5.75%                
Interest rate floor   0.50%                
Term Loan | Eurodollar                    
Debt Instrument [Line Items]                    
Minimum annual rate     1.25%              
Term Loan Amendment Two [Member]                    
Debt Instrument [Line Items]                    
Financing costs incurred                 $ 100