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Consolidated Statement of Stockholders' Equity (Parenthetical) $ in Millions	3 Months Ended
	Sep. 30, 2025 USD ($) transaction	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($) transaction	Sep. 30, 2024 USD ($) transaction	Jun. 30, 2024 USD ($) transaction	Mar. 31, 2024 USD ($) transaction
Statement of Stockholders' Equity [Abstract]
Tax effect on net change in pension asset/liability	$ (0.5)	$ (1.1)	$ (0.0)	$ (0.0)	$ (0.0)	$ 0.1
Tax effect on net change in fair value of derivative instruments	$ (6.6)	$ 3.5	$ (0.2)	$ 3.9	$ (0.5)	$ (0.4)
Number of purchase transactions | transaction	2		1	2	2	7

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Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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