Segment Information - Segment Results (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Sales	$ 2,510.6	$ 2,566.5	$ 2,569.1
Expenses	2,268.4	2,178.1	2,128.1
Segment operating profit	(1,038.2)	31.5	319.2
Other (expense) income, net	(0.1)	(23.0)	3.1
Interest expense, net	(46.4)	(63.4)	(38.4)
Total	(1,084.7)	(54.9)	283.9
Depreciation and amortization	123.1	135.6	137.8
Capital expenditures, gross	34.1	53.2	72.1
Identifiable assets	5,350.5	6,605.1
Operating segments
Segment Reporting Information [Line Items]
Segment operating profit	242.2	388.4	441.0
Corporate and other
Segment Reporting Information [Line Items]
Segment operating profit	(1,280.4)	(356.9)	(121.8)
Depreciation and amortization	2.1	2.3	2.5
Capital expenditures, gross	3.2	1.9	2.7
Identifiable assets	1,112.1	988.8
Specialty Products & Technologies
Segment Reporting Information [Line Items]
Sales	1,616.4	1,642.4	1,598.6
Expenses	1,526.5	1,410.3	1,330.0
Specialty Products & Technologies | Operating segments
Segment Reporting Information [Line Items]
Segment operating profit	89.9	232.1	268.6
Depreciation and amortization	85.1	86.1	80.7
Capital expenditures, gross	20.4	39.0	48.8
Identifiable assets	2,354.2	3,277.7
Equipment & Consumables
Segment Reporting Information [Line Items]
Sales	894.2	924.1	970.5
Expenses	741.9	767.8	798.1
Equipment & Consumables | Operating segments
Segment Reporting Information [Line Items]
Segment operating profit	152.3	156.3	172.4
Depreciation and amortization	35.9	47.2	54.6
Capital expenditures, gross	10.5	12.3	$ 20.6
Identifiable assets	$ 1,884.2	$ 2,338.6