Industry Segments and Geographic Area Information - Industry Segments Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net Sales:
Net sales	$ 4,947.9	$ 4,194.1	$ 3,682.5
Operating Income:
Operating Income	709.1	532.3	494.5
Loss on disposition of business (Note 4)	0.0	(6.9)	0.0
Loss on extinguishment of debt (Note 13)	0.0	(16.8)	0.0
Pension charge (Note 12)	(7.0)	0.0	(7.6)
Interest expense, net	(49.6)	(54.7)	(60.1)
Other income (expense), net	4.5	5.4	(2.3)
Income from continuing operations before income taxes	657.0	459.3	424.5
Assets:
Assets	5,402.6	5,281.5	5,085.1
Capital Expenditures:
Capital expenditures	129.3	90.2	82.8
Depreciation and Amortization:
Depreciation and amortization	148.5	149.1	144.5
Utility Solutions
Net Sales:
Net sales	2,871.1	2,334.4	2,079.4
Electrical Solutions
Net Sales:
Net sales	2,076.8	1,859.7	1,603.1
Operating Segments | Utility Solutions
Net Sales:
Net sales	2,871.1	2,334.4	2,079.4
Operating Income:
Operating Income	438.2	284.1	305.6
Assets:
Assets	3,011.9	2,823.8	2,812.4
Capital Expenditures:
Capital expenditures	86.9	55.8	55.9
Depreciation and Amortization:
Depreciation and amortization	99.2	108.5	103.2
Operating Segments | Electrical Solutions
Net Sales:
Net sales	2,076.8	1,859.7	1,603.1
Operating Income:
Operating Income	270.9	248.2	188.9
Assets:
Assets	1,972.9	2,142.1	1,984.4
Capital Expenditures:
Capital expenditures	39.5	31.1	25.0
Depreciation and Amortization:
Depreciation and amortization	49.3	40.6	41.3
General Corporate
Assets:
Assets	417.8	315.6	288.3
Capital Expenditures:
Capital expenditures	$ 2.9	$ 3.3	$ 1.9