Share Based Compensation - Outstanding Options and Rights (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 6.8	$ 4.8	$ 17.9	$ 15.6
Tax benefit from share-based compensation expense	1.7	1.2	4.4	3.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Tax benefit from share-based compensation expense	$ 1.7	$ 1.2	$ 4.4	$ 3.7