Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 41.2	$ 47.6	$ 41.9
Additions based on tax positions relating to the current year	12.1	6.1	7.4
Reductions based on expiration of statute of limitations	(4.8)	(10.3)	(6.2)
Additions/(Subtractions) to tax positions relating to previous years	(6.2)	(2.2)
Additions/(Subtractions) to tax positions relating to previous years			4.5
Settlements	(0.2)	0.0	0.0
TOTAL UNRECOGNIZED TAX BENEFITS	$ 42.1	$ 41.2	$ 47.6