Other Comprehensive (Loss) Earnings - Components of AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Components of AOCI [Abstract]
Beginning balance	$ (100.4)	$ (100.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(21.7)	0.1	$ 11.5
Ending balance	(122.1)	(100.4)	(100.5)
Cash flow hedges
Components of AOCI [Abstract]
Beginning balance	0.3	1.6
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.7	(1.3)
Ending balance	1.0	0.3	1.6
Employee benefit plans
Components of AOCI [Abstract]
Beginning balance	(17.1)	(22.1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.8	5.0
Ending balance	(16.3)	(17.1)	(22.1)
Cumulative foreign currency translation adjustments
Components of AOCI [Abstract]
Beginning balance	(83.6)	(80.0)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(23.2)	(3.6)
Ending balance	$ (106.8)	$ (83.6)	$ (80.0)