Equity - Reconciliation of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase (Decrease) in Equity [Roll Forward]
Beginning balance	$ 537.8
Total other comprehensive income (loss), net of income tax	21.5	$ (5.5)	$ (4.9)
Ending balance	603.3	537.8
Gains (Losses) on Cash Flow Hedges
Increase (Decrease) in Equity [Roll Forward]
Beginning balance	5.4	0.0
Other comprehensive income (loss) before reclassifications	(1.8)	(0.4)
Amounts reclassified from accumulated other comprehensive loss	(2.3)	5.8
Total other comprehensive income (loss), net of income tax	(4.1)	5.4
Ending balance	1.3	5.4	0.0
Pension & Postretirement
Increase (Decrease) in Equity [Roll Forward]
Beginning balance	(15.3)	(32.3)
Other comprehensive income (loss) before reclassifications	2.4	15.5
Amounts reclassified from accumulated other comprehensive loss	2.6	1.5
Total other comprehensive income (loss), net of income tax	5.0	17.0
Ending balance	(10.3)	(15.3)	(32.3)
Foreign Currency Translation
Increase (Decrease) in Equity [Roll Forward]
Beginning balance	(98.0)	(70.1)
Other comprehensive income (loss) before reclassifications	11.3	(27.9)
Amounts reclassified from accumulated other comprehensive loss	9.3	0.0
Total other comprehensive income (loss), net of income tax	20.6	(27.9)
Ending balance	(77.4)	(98.0)	(70.1)
Accumulated Other Comprehensive Loss
Increase (Decrease) in Equity [Roll Forward]
Beginning balance	(107.9)	(102.4)
Other comprehensive income (loss) before reclassifications	11.9	(12.8)
Amounts reclassified from accumulated other comprehensive loss	9.6	7.3
Total other comprehensive income (loss), net of income tax	21.5	(5.5)
Ending balance	$ (86.4)	$ (107.9)	$ (102.4)