Share Based Compensation - Aggregate Intrinsic Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options and Stock Appreciation Rights, Exercised, Aggregate Intrinsic Value	$ 25.4
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 9 months 18 days
Stock Options and Stock Appreciation Rights, Outstanding, Aggregate Intrinsic Value	$ 30.3
Units outstanding	997,281	1,001,000
Stock Option SAR Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options and Stock Appreciation Rights, Exercised, Aggregate Intrinsic Value	$ 9.0	$ 13.4	$ 22.5