Long-Term Debt - Debt prepayments (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 28, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Line of Credit Facility [Line Items]
Repayments of long-term debt		$ 1,723.4	$ 530.0	$ 1,270.5
0.50% Notes | Term Loan B Facility
Line of Credit Facility [Line Items]
Repayments of long-term debt	$ 1,086.0	$ 1,086.0
0.50% Notes | Convertible Debt
Line of Credit Facility [Line Items]
Debt instrument, interest rate	0.50%	0.50%
0.50% Notes | Convertible Debt | Term Loan B Facility
Line of Credit Facility [Line Items]
Expense of unamortized debt discount and issuance costs		$ 13.3
Revolver due 2024 | Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Repayments of debt		125.0
New Credit Agreement | Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Borrowings used to enter into convertible note hedge and warrant transactions		$ 375.0