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Income Taxes - Unrecognized Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Uncertain tax position balance at beginning of year $ 9.8 $ 2.0 $ 1.7
Increases in current year tax positions 0.1 0.3 0.3
Increases in prior year tax positions 1.4 0.0 0.0
Decreases due to lapse of statute of limitations (0.4) (0.7) 0.0
Increases from business acquisitions 9.0 8.2 0.0
Uncertain tax position balance at end of year $ 19.9 $ 9.8 $ 2.0