Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 285,600,000	$ 313,800,000	$ 267,900,000	$ 324,800,000
Other comprehensive income (loss)	(8,400,000)	(16,900,000)	(400,000)	(34,800,000)
Ending balance	287,300,000	299,600,000	287,300,000	299,600,000
Income taxes provided on currency translation as foreign earnings permanently reinvested	0	0	0	0
Cumulative Translation Adjustment
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(33,200,000)	(36,800,000)	(38,700,000)	(18,300,000)
Other comprehensive income (loss)	(9,300,000)	(17,000,000.0)	(3,800,000)	(35,500,000)
Ending balance	(42,500,000)	(53,800,000)	(42,500,000)	(53,800,000)
Cash Flow Hedges
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	100,000	500,000	500,000	0
Other comprehensive income (loss)	(100,000)	0	(500,000)	500,000
Ending balance	0	500,000	0	500,000
Pension and Postretirement Benefits
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(20,700,000)	(800,000)	(23,600,000)	(900,000)
Other comprehensive income (loss)	1,000,000.0	100,000	3,900,000	200,000
Ending balance	(19,700,000)	(700,000)	(19,700,000)	(700,000)
Accumulated Other Comprehensive Loss
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(53,800,000)	(37,100,000)	(61,800,000)	(19,200,000)
Ending balance	$ (62,200,000)	$ (54,000,000.0)	$ (62,200,000)	$ (54,000,000.0)