Investments in and Advances to Unconsolidated Affiliates - Affiliate Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments in and Advances to Affiliates [Line Items]
Net revenue	$ 590.9	$ 559.5
Operating and SG&A expense	54.8	52.3
Operating income	126.3	119.9
Interest and other, net	(70.4)	(64.7)
Net income	80.4	155.7
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Investments in and Advances to Affiliates [Line Items]
Net revenue	216.9	220.6
Operating and SG&A expense	134.9	137.2
Depreciation and amortization	6.3	5.7
Total operating expense	141.2	142.9
Operating income	75.7	77.7
Interest and other, net	(11.0)	(10.9)
Net income	$ 64.7	$ 66.8