Share Based Compensation - Outstanding Options and Rights (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 5.4	$ 3.5
Tax benefit from share-based compensation expense	1.4	0.9
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Tax benefit from share-based compensation expense	$ 1.4	$ 0.9