Investments in Unconsolidated Affiliates (Schedule of Equity (Earnings) Losses from Unconsolidated Affiliates) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Schedule of Equity Method Investments [Line Items]
Equity (earnings) from unconsolidated affiliates, net	$ (31.9)	$ (26.3)	$ (58.5)	$ (53.5)
WAVE [Member]
Schedule of Equity Method Investments [Line Items]
Equity (earnings) from unconsolidated affiliates, net	(32.1)	(26.5)	(58.9)	(53.9)
Overcast [Member]
Schedule of Equity Method Investments [Line Items]
Equity (earnings) from unconsolidated affiliates, net	$ 0.2	$ 0.2	$ 0.4	$ 0.4

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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