Share-Based Compensation - Total Share-Based Compensation (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	$ 6.6	$ 5.7
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	3.3	2.7
Performance share units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	2.0	2.0
Stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	$ 1.3	$ 1.0