Consolidated Statements of Comprehensive (Loss) Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on derivative instruments, tax benefit (expense)	$ 0.0	$ (0.2)	$ (0.2)	$ 0.1
Foreign currency translation adjustments, tax (expense) benefit	(0.5)	0.1	(0.5)	0.2
Recognition of deferred pension and other post-retirement items, tax (expense) benefit	$ (1.4)	$ 0.2	$ (2.1)	$ 0.6