Stockholders’ Equity and Stock-Based Compensation - Stock Appreciation Rights (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (reduction to expense)	$ 14.2	$ 19.7	$ 26.1	$ 36.2
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Liability for cash-settled awards	0.9		$ 0.9		$ 5.8
Unrecognized compensation cost, other awards	0.3		$ 0.3
Unamortized compensation costs, weighted average period of recognition			1 year 7 months 6 days
Stock-based compensation expense (reduction to expense)	$ 0.1	$ (3.6)	$ (4.5)	(3.7)
Amounts paid on cash-settled awards			$ 0.1	$ 0.6