Quarterly report pursuant to Section 13 or 15(d)

Debt - Narrative (Details)

v3.21.2
Debt - Narrative (Details)
1 Months Ended 9 Months Ended
May 28, 2021
USD ($)
Jun. 30, 2021
USD ($)
May 31, 2021
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 28, 2021
USD ($)
Sep. 30, 2020
USD ($)
Debt Instrument [Line Items]              
Costs related to debt financing       $ 8,509,000 $ 0    
Total debt principal   $ 1,707,754,000   1,707,754,000     $ 28,895,000
Other Current Liabilities              
Debt Instrument [Line Items]              
Fair value of derivative instrument   (1,400,000)   (1,400,000)      
Interest Rate Swap              
Debt Instrument [Line Items]              
Derivative, notional amount           $ 300,000,000.0  
Derivative, fixed interest rate           0.986%  
Secured Debt              
Debt Instrument [Line Items]              
Maximum amount netted against funded debt   $ 75,000,000.0   $ 75,000,000.0      
Net total leverage ratio   2.4   2.4      
Secured Debt | Five Year Term Loan              
Debt Instrument [Line Items]              
Debt instrument, term 5 years            
Debt instrument, face amount $ 1,100,000,000            
Interest rate during period   1.75%          
Total debt principal   $ 1,100,000,000   $ 1,100,000,000     0
Secured Debt | Seven Year Term Loan              
Debt Instrument [Line Items]              
Debt instrument, term 7 years            
Debt instrument, face amount $ 400,000,000.0            
Interest rate during period   2.50%          
Base rate 0.50%            
Total debt principal   $ 400,000,000   $ 400,000,000     $ 0
Secured Debt | Seven Year Term Loan | LIBOR or Base Rate              
Debt Instrument [Line Items]              
Basis spread on variable rate 2.00%            
Line of Credit | Revolving Credit Facility              
Debt Instrument [Line Items]              
Interest rate during period   1.75%          
Maximum borrowing capacity $ 600,000,000.0            
Bridge Loan              
Debt Instrument [Line Items]              
Costs related to debt financing     $ 8,500,000