Fair Value Measurements - Level 3 Assets and Liabilities Held at Fair Value (Details) - Fair Value, Inputs, Level 3 $ in Millions	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration obligations	$ 246.4	$ 512.8
Minimum | Risk-adjusted discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.053	0.062
Maximum | Risk-adjusted discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.054	0.063
Weighted Average | Risk-adjusted discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.054	0.062