Condensed Consolidated Statements of Comprehensive Income (Loss) Parentheticals - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest rate hedges
Interest rate hedges, net gain recognized in other comprehensive income, tax		$ (0.0)	$ (0.0)	$ (0.6)
Pension and other post-retirement benefits
Net actuarial loss amortization, tax	$ (3.1)	(0.6)	3.8	1.0
Pension Plan [Member]
Net actuarial loss amortization, tax	$ (0.0)	$ (0.0)
Foreign Currency Hedges
Net actuarial loss amortization, tax			$ (0.0)	$ (0.0)