Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Balance at the beginning of the year	$ 10.9	$ 7.0	$ 14.1
Additions based on tax positions related to current year	0.2	4.3	0.9
Additions for tax positions related to prior years and acquisitions	0.4	0.2	0.1
Reductions for tax positions related to prior years	(0.1)	(0.2)	(6.5)
Reductions for tax positions related to lapse of applicable statute of limitations	(4.5)	(0.4)	(0.4)
Reductions for tax positions related to settlements with taxing authorities	0.0	0.0	(1.2)
Balance at the end of the year	$ 6.9	$ 10.9	$ 7.0