Industry Segments and Geographic Area Information - Industry Segments Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Sales:
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
Operating Income:
Operating Income	1,038.5	709.1	532.3
Loss on disposition of business (Note 4)	0.0	0.0	(6.9)
Loss on extinguishment of debt (Note 13)	0.0	0.0	(16.8)
Pension charge (Note 12)	0.0	(7.0)	0.0
Interest expense, net	(36.7)	(49.6)	(54.7)
Other (expense) income, net	(18.5)	4.5	5.4
Income from continuing operations before income taxes	983.3	657.0	459.3
Assets:
Assets	6,914.0	5,402.6	5,281.5
Capital Expenditures:
Capital expenditures	165.7	129.3	90.2
Depreciation and Amortization:
Depreciation and amortization	149.7	148.5	149.1
Utility Solutions
Net Sales:
Net sales	3,261.7	2,871.1	2,334.4
Electrical Solutions
Net Sales:
Net sales	2,111.2	2,076.8	1,859.7
Operating Segments | Utility Solutions
Net Sales:
Net sales	3,261.7	2,871.1	2,334.4
Operating Income:
Operating Income	706.6	438.2	284.1
Assets:
Assets	4,601.1	3,011.9	2,823.8
Capital Expenditures:
Capital expenditures	97.3	86.9	55.8
Depreciation and Amortization:
Depreciation and amortization	103.4	99.2	108.5
Operating Segments | Electrical Solutions
Net Sales:
Net sales	2,111.2	2,076.8	1,859.7
Operating Income:
Operating Income	331.9	270.9	248.2
Assets:
Assets	1,923.1	1,972.9	2,142.1
Capital Expenditures:
Capital expenditures	64.8	39.5	31.1
Depreciation and Amortization:
Depreciation and amortization	46.3	49.3	40.6
General Corporate
Assets:
Assets	389.8	417.8	315.6
Capital Expenditures:
Capital expenditures	$ 3.6	$ 2.9	$ 3.3