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Fair Value Measurements and Derivative Instruments - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2021
Mar. 31, 2022
Sep. 30, 2021
Interest Rate Contracts      
Derivative [Line Items]      
Notional amount   $ 500.0 $ 500.0
Interest Rate Swaps      
Derivative [Line Items]      
Net deferred gain on interest rate swap net of taxes expected to be recognized over the next 12 months   $ 1.2  
Maximum      
Derivative [Line Items]      
Percentage of participants compensation deferred 70.00%