Condensed Consolidated Statements of Stockholder Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Pension adjustments, tax benefit (expense)	$ 0.1	$ 0.1	$ 0.1
Change in cumulative translation adjustment, tax expense (benefit)	(0.2)	6.9	(6.9)
Investment hedge, tax expense (benefit)	0.1	(2.3)	8.0
Derivative financial instrument, tax expense (benefit)	$ (2.2)	$ 0.5	$ 15.9