Stockholders' Equity - Total Share-based Incentive Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Equity [Abstract]
Total share-based incentive compensation expense	$ 12.1	$ 12.7	$ 32.3	$ 41.3