Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net Income (Loss)		$ (12.7)	$ (140.6)	$ (68.9)
Other comprehensive income (loss):
Foreign currency translation adjustments		54.6	(126.0)	(339.9)
Change in fair value of derivative financial instruments	[1]	(7.4)	46.5	(21.3)
Change in post-retirement and pension liability		(9.5)	17.0	1.7
Other comprehensive income (loss), net of tax		37.7	(62.5)	(359.5)
Comprehensive income (loss)		$ 25.0	$ (203.1)	$ (428.4)

[1] Net of tax of $(7.2) million, $13.1 million and $(0.7) million, respectively.