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Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Nov. 02, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value	$ 77.3		$ 77.3		$ 90.3
Business Combination, Contingent Consideration, Liability	77.3		77.3		90.3
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0.0	$ 0.0	(8.9)	$ (49.3)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred			(4.1)
Derivative Asset, Fair Value, Gross Asset	8.1		8.1		4.1
Derivative Liability, Fair Value, Gross Liability	5.5		5.5		4.8
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	0.0	$ 0.0	0.0	$ (52.2)
Nuvolo
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						$ 90.0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						$ 90.0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	0.0		0.0		0.0
Derivative Asset, Fair Value, Gross Asset	0.0		0.0		0.0
Derivative Liability, Fair Value, Gross Liability	0.0		0.0		0.0
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Short-Term Investments	457.6		457.6		0.0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	0.0		0.0		0.0
Derivative Asset, Fair Value, Gross Asset	8.1		8.1		4.1
Derivative Liability, Fair Value, Gross Liability	5.5		5.5		4.8
Fair Value, Inputs, Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	77.3		77.3		90.3
Derivative Asset, Fair Value, Gross Asset	0.0		0.0		0.0
Derivative Liability, Fair Value, Gross Liability	$ 0.0		$ 0.0		$ 0.0
Measurement Input, Discount Rate \| Valuation Technique, Option Pricing Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration]	Measurement Input, Discount Rate		Measurement Input, Discount Rate		Measurement Input, Discount Rate
Measurement Input, Price Volatility \| Valuation Technique, Option Pricing Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration]	Measurement Input, Price Volatility		Measurement Input, Price Volatility		Measurement Input, Price Volatility