Segment Information - Business Information (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 1,082.0	$ 1,136.4	$ 1,153.7	$ 1,124.6	$ 1,007.3	$ 1,037.3	$ 1,062.9	$ 1,025.4	$ 4,496.7	$ 4,132.9	$ 3,513.2
Total EBITDA, for reportable segments									838.6	746.4	675.4
Unallocated corporate expense									550.9	476.6	396.3
Pension and other postretirement (income) expense									0.6	6.6	(17.4)
Bargain purchase price gain									0.0	0.9	11.1
Depreciation and amortization									(164.0)	(167.8)	(167.1)
Interest expense									(74.6)	(58.8)	(67.6)
Interest income									3.8	2.3	3.7
Assets employed at year-end:
Total assets	5,772.4				5,170.7				5,772.4	5,170.7
Capital expenditures:
Payments to acquire property, plant, and equipment									178.4	148.3	121.6
Depreciation and amortization:
Depreciation and amortization									164.0	167.8	167.1
Mobile Industries
Segment Reporting Information [Line Items]
Net sales									2,106.5	1,965.7	1,671.6
Total EBITDA, for reportable segments									217.1	240.1	232.5
Depreciation and amortization									(75.2)	(80.1)	(79.7)
Assets employed at year-end:
Total assets	2,371.6				2,216.4				2,371.6	2,216.4
Capital expenditures:
Payments to acquire property, plant, and equipment									71.2	52.3	70.5
Depreciation and amortization:
Depreciation and amortization									75.2	80.1	79.7
Process Industries
Segment Reporting Information [Line Items]
Net sales									2,390.2	2,167.2	1,841.6
Total EBITDA, for reportable segments									621.5	506.3	442.9
Depreciation and amortization									(87.6)	(86.6)	(86.6)
Assets employed at year-end:
Total assets	2,963.4				2,548.3				2,963.4	2,548.3
Capital expenditures:
Payments to acquire property, plant, and equipment									105.8	95.4	50.1
Depreciation and amortization:
Depreciation and amortization									87.6	86.6	86.6
Corporate
Segment Reporting Information [Line Items]
Unallocated corporate expense									(50.0)	(46.1)	(40.7)
Pension and other postretirement (income) expense									(2.9)	(0.3)	(18.5)
Depreciation and amortization									(1.2)	(1.1)	(0.8)
Assets employed at year-end:
Total assets	$ 437.4				$ 406.0				437.4	406.0
Capital expenditures:
Payments to acquire property, plant, and equipment									1.4	0.6	1.0
Depreciation and amortization:
Depreciation and amortization									$ 1.2	$ 1.1	$ 0.8