Fair Value Measurements - Fair Value of Long-Term Debt, Including Current Portion (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	$ 3,379.9
Convertible Debt | 0.50% Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, interest rate	0.50%	0.50%
Carrying Amount	$ 1,478.2	$ 1,473.1
Fair Value	$ 1,450.4	$ 1,596.6
Convertible Debt | 0% Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, interest rate	0.00%	0.00%
Carrying Amount	$ 797.2	$ 794.0
Fair Value	$ 1,054.4	$ 1,334.4
Notes Payable | 3.875% Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, interest rate	3.875%	3.875%
Carrying Amount	$ 695.5	$ 694.4
Fair Value	656.3	652.0
Revolving Credit Facility | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	375.0	375.0
Fair Value	$ 373.4	$ 390.6