Stockholders’ Equity and Stock-Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock-based compensation expense (reduction to expense)	$ 35.2	$ 13.6	$ 71.4	$ 45.1
Partial stock-based compensation expense	$ 14.5		$ 14.5
Stock options granted (in shares)	905	1,516	841,140	397,881