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Long-Term Debt (Prior Credit Facility) - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 19, 2021
Jan. 05, 2021
Nov. 13, 2020
Apr. 21, 2020
Dec. 15, 2015
Dec. 31, 2012
Apr. 01, 2011
Mar. 31, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Mar. 29, 2018
Debt Instrument [Line Items]                        
Debt extinguishment costs                 $ (3,271) $ (24,650) $ (3,271)  
Tranche B-4 Facilities [Member]                        
Debt Instrument [Line Items]                        
Repayments of credit facility $ 767,900 $ 105,000                    
Term Loan A- Facility [Member]                        
Debt Instrument [Line Items]                        
Line of credit outstanding principal amount     $ 352,400                  
Repayments of credit facility $ 311,700                      
Prior Credit Facility [Member]                        
Debt Instrument [Line Items]                        
Date entered into an agreement           Dec. 31, 2012 Apr. 01, 2011          
Debt instrument maturity date         Nov. 30, 2021              
Debt extinguishment costs               $ 10,900        
Prior Credit Facility [Member] | Repricing Facilities Amendments [Member]                        
Debt Instrument [Line Items]                        
Debt instrument maturity date     Nov. 30, 2022                  
Debt extinguishment costs     $ 1,000                  
Prior Credit Facility [Member] | Senior Secured Revolving Line of Credit [Member] | Repricing Facilities Amendments [Member]                        
Debt Instrument [Line Items]                        
Line of credit     459,000                 $ 500,000
Prior Credit Facility [Member] | Term Loan A- Facility [Member] | Repricing Facilities Amendments [Member]                        
Debt Instrument [Line Items]                        
Line of credit outstanding principal amount     $ 318,900                  
Thirteenth Amendment [Member]                        
Debt Instrument [Line Items]                        
Date entered into an agreement       Apr. 21, 2020