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Fair Value of Financial Instruments - Other Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Other Equity Method Investments
Fair Value, Financial Instruments Measured on a Non-Recurring Basis [Line Items]
Equity contributions			$ 0.0	$ 0.2
Subcontracting Arrangements \| Related Party
Fair Value, Financial Instruments Measured on a Non-Recurring Basis [Line Items]
Operating costs and expenses	$ 0.6	$ 1.2	2.0	2.4
Accounts payable	0.2		0.2		$ 0.3
Accounts receivable, after allowance for credit loss					0.4
Advanced Receivable Arrangement
Fair Value, Financial Instruments Measured on a Non-Recurring Basis [Line Items]
Operating costs and expenses				$ 0.1
Employee Leasing and Advanced Receivable Arrangement \| Related Party
Fair Value, Financial Instruments Measured on a Non-Recurring Basis [Line Items]
Accounts receivable, after allowance for credit loss	$ 4.0		$ 4.0		$ 4.1