Share-Based Compensation and Equity - Share-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	$ 13.4	$ 13.8	$ 14.9
Tax benefit	(1.6)	(3.6)	(3.7)
Total share-based compensation, net of tax	11.8	10.2	11.2
Stock Options [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	0.3	1.5	1.7
Tax benefit	0.0	(0.4)	(0.5)
Total share-based compensation, net of tax	0.3	1.1	1.2
Restricted Stock Units [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	13.6	8.7	8.9
Tax benefit	(1.6)	(2.2)	(2.2)
Total share-based compensation, net of tax	12.0	6.5	6.7
Performance Shares [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	(0.5)	3.6	4.3
Tax benefit	0.0	(1.0)	(1.0)
Total share-based compensation, net of tax	$ (0.5)	$ 2.6	$ 3.3