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Business Acquisitions, Investments and Restructuring Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Business Acquisition [Line Items]
Loss from unconsolidated equity method investments	$ (33.8)	$ (3.6)	$ (42.5)	$ (2.7)
Restructuring charges	5.7	15.5	11.5	21.0
Restructuring expenditures			9.9	26.1
Contract Termination
Business Acquisition [Line Items]
Restructuring charges		9.4		9.4
Redesign Of Software Systems
Business Acquisition [Line Items]
Restructuring charges		6.1		6.1
Investment Tax Credit Carryforward
Business Acquisition [Line Items]
Increase (decrease) in income taxes	(32.6)	$ 0.0	(41.0)	0.0
Other Noncurrent Assets
Business Acquisition [Line Items]
Capital contributions to equity method investment			90.8	$ 1.5
Joint Venture with Landfill Gas to Energy Developer
Business Acquisition [Line Items]
Capital contributions to equity method investment			30.8
Thermal Processing Facility
Business Acquisition [Line Items]
Capital contributions to equity method investment			26.9
Certain Limited Liability Companies
Business Acquisition [Line Items]
Loss from unconsolidated equity method investments	$ (33.2)		$ (42.4)