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Income Taxes - Income Before the Provision for Income Taxes from Continuing Domestic and Foreign Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Domestic $ 218.0 $ 101.4 $ 106.7
Foreign (4.1) 0.0 0.0
Income before provision for (benefit from) income taxes $ 213.9 $ 101.4 $ 106.7