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Goodwill, Trade Name, and Customer Lists - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended
Jan. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]          
Amortization expense $ 0.8 $ 18.4 $ 19.9 $ 52.8 $ 55.1