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Summary of Significant Accounting Policies - Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	$ (29.0)	$ 135.0	$ 37.5
Tax	3.0	(0.5)	(13.9)
Other comprehensive income (loss)	(26.0)	134.5	23.6
Pension and OPEB liability adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	(0.8)	(11.2)	9.9
Tax	0.4	1.8	(6.4)
Other comprehensive income (loss)	(0.4)	(9.4)	3.5
Derivative instrument adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	(10.6)	(16.6)	61.3
Tax	2.6	0.1	(15.0)
Other comprehensive income (loss)	(8.0)	(16.5)	46.3
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	(17.6)	35.4	(33.7)
Tax	0.0	0.1	7.5
Other comprehensive income (loss)	(17.6)	35.5	(26.2)
Reclassification of foreign currency translation to income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	0.0	127.4	0.0
Tax	0.0	(2.5)	0.0
Other comprehensive income (loss)	$ 0.0	$ 124.9	$ 0.0

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