Segment Information - Segment Results (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Sales	$ 2,566.5	$ 2,569.1	$ 2,508.9
Operating profit (loss)	31.5	319.2	306.2
Other (expense) income, net	(23.0)	3.1	2.4
Interest expense, net	(63.4)	(38.4)	(54.1)
(Loss) income before income taxes	(54.9)	283.9	254.5
Depreciation and amortization	135.6	137.8	117.8
Capital expenditures, gross	53.2	72.1	49.1
Identifiable assets	6,605.1	6,587.0
Other
Segment Reporting Information [Line Items]
Operating profit (loss)	(356.9)	(121.8)	(119.9)
Depreciation and amortization	2.3	2.5	2.4
Capital expenditures, gross	1.9	2.7	1.3
Identifiable assets	988.8	656.0
Specialty Products & Technologies
Segment Reporting Information [Line Items]
Sales	1,642.4	1,598.6	1,507.8
Specialty Products & Technologies | Operating segments
Segment Reporting Information [Line Items]
Operating profit (loss)	232.1	268.6	272.3
Depreciation and amortization	86.1	80.7	84.0
Capital expenditures, gross	39.0	48.8	37.2
Identifiable assets	3,277.7	3,475.7
Equipment & Consumables
Segment Reporting Information [Line Items]
Sales	924.1	970.5	1,001.1
Equipment & Consumables | Operating segments
Segment Reporting Information [Line Items]
Operating profit (loss)	156.3	172.4	153.8
Depreciation and amortization	47.2	54.6	31.4
Capital expenditures, gross	12.3	20.6	$ 10.6
Identifiable assets	$ 2,338.6	$ 2,455.3