Fair Value Measurements - Changes in Fair Value of Level 3 Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Assets and Liabilities
Additions		$ 90.0
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	General and administrative
Fair Value, Recurring
Other Assets and Liabilities
Beginning Balance	$ 254.5	125.2	$ 100.9
Interest	47.1	36.1	27.6
Payment installments	(33.1)	(2.9)	(2.7)
Included in loss and other comprehensive loss	6.1	6.1	(0.6)
Ending Balance	$ 274.6	$ 254.5	$ 125.2