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Credit Agreement - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 16, 2021
Mar. 31, 2021
Feb. 12, 2021
Mar. 31, 2021
Mar. 31, 2020
Nov. 30, 2020
Oct. 27, 2020
May 06, 2020
Apr. 23, 2019
Aug. 15, 2018
Debt Instrument [Line Items]                    
Embedded derivative     $ 5,600              
Debt instrument loss on extinguishment of debt       $ (16,852) $ 0          
Debt Instrument, Periodic Payment, Principal     4,600              
Subsequent Event [Member]                    
Debt Instrument [Line Items]                    
Decrease in the variable interest rate margin 0.25%                  
Fifth Amendment Term Loan [Member]                    
Debt Instrument [Line Items]                    
New term loan     597,800              
Debt issuance costs     3,500              
Third party debt issuance costs that were expensed immediately     2,900              
Debt issuance costs, gross     $ 600              
Percentage change of present value of cash flow between the original and modified debt     10.00%              
Debt instrument loss on extinguishment of debt     $ 16,900              
Fifth Amendment Term Loan [Member] | Contingent Interest Adjustment Feature [Member]                    
Debt Instrument [Line Items]                    
Embedded derivative     5,600              
Third Amendment Term Loans [Member]                    
Debt Instrument [Line Items]                    
New term loan               $ 300,000    
Repayment of long term debt     298,200              
Amended Revolving Credit Facility [Member]                    
Debt Instrument [Line Items]                    
Debt instrument increase in the credit facility           $ 150,000        
Lender commitment under the line of credit     10,000       $ 540,000     $ 50,000
Amended Revolving Credit Facility [Member] | Affiliate Of KKR Denali [Member]                    
Debt Instrument [Line Items]                    
Proceeds from long term line of credit facility   $ 250,000   250,000            
Line of credit facility maximum borrowing capacity   600,000   600,000            
Line of credit non current outstanding   $ 400,000   $ 400,000            
Amended Revolving Credit Facility [Member] | Affiliate Of KKR Denali [Member] | Subsequent Event [Member]                    
Debt Instrument [Line Items]                    
Decrease in the variable interest rate margin 0.25%                  
Fifth Amendment Term Loan And Revolving Credit Facility [Member]                    
Debt Instrument [Line Items]                    
Debt issuance costs paid to related party     $ 800              
Closing Term Loans [Member]                    
Debt Instrument [Line Items]                    
New term loan                 $ 400,000 $ 820,000