Industry Segments and Geographic Area Information - Schedule of Industry Segment Data (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
TOTAL NET SALES	$ 1,492.7	$ 1,502.4	$ 1,484.3	$ 1,365.2	$ 1,334.3	$ 1,442.6	$ 1,452.5	$ 1,399.1	$ 5,844.6	$ 5,628.5	$ 5,372.9
Total Cost of Goods Sold	967.6	958.1	932.2	922.6	882.1	936.6	938.7	965.5	3,780.5	3,722.9	3,495.9
Total Gross Profit	525.1	544.3	552.1	442.6	452.2	506.0	513.8	433.6	2,064.1	1,905.6	1,877.0
Total Selling and Administrative Expenses	213.6	$ 213.7	215.8	$ 212.2	192.5	$ 193.3	$ 207.5	219.2	855.3	812.5	849.6
Total Operating Income									1,208.8	1,093.1	1,027.4
Loss on disposition of business (Note 3)			$ (0.4)					$ (5.3)	(0.4)	(5.3)	0.0
Interest expense, net									(64.1)	(73.8)	(36.7)
Other expense, net									(25.2)	(7.2)	(18.5)
Income before income taxes									$ 1,119.1	$ 1,006.8	$ 972.2
Total Operating Income as % of Net Sales									20.70%	19.40%	19.10%
Assets:
TOTAL ASSETS	8,228.8				6,847.7				$ 8,228.8	$ 6,847.7	$ 7,081.1
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES									155.1	180.4	165.7
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION									206.1	212.1	149.7
Utility Solutions
Segment Reporting Information [Line Items]
TOTAL NET SALES									3,672.3	3,600.7	3,261.7
Electrical Solutions
Segment Reporting Information [Line Items]
TOTAL NET SALES									2,172.3	2,027.8	2,111.2
Operating Segments | Utility Solutions
Segment Reporting Information [Line Items]
TOTAL NET SALES									3,672.3	3,600.7	3,261.7
Total Cost of Goods Sold									2,396.3	2,418.4	2,129.8
Total Gross Profit									1,276.0	1,182.3	1,131.9
Total Selling and Administrative Expenses									486.1	450.5	433.5
Total Operating Income									$ 789.9	$ 731.8	$ 698.4
Total Operating Income as % of Net Sales									21.50%	20.30%	21.40%
Assets:
TOTAL ASSETS	5,603.8				4,569.1				$ 5,603.8	$ 4,569.1	$ 4,690.1
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES									81.3	103.6	99.5
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION									151.8	164.5	103.4
Operating Segments | Electrical Solutions
Segment Reporting Information [Line Items]
TOTAL NET SALES									2,172.3	2,027.8	2,111.2
Total Cost of Goods Sold									1,384.2	1,304.5	1,366.1
Total Gross Profit									788.1	723.3	745.1
Total Selling and Administrative Expenses									369.2	362.0	416.1
Total Operating Income									$ 418.9	$ 361.3	$ 329.0
Total Operating Income as % of Net Sales									19.30%	17.80%	15.60%
Assets:
TOTAL ASSETS	2,238.8				1,943.4				$ 2,238.8	$ 1,943.4	$ 2,001.1
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES									73.8	76.8	66.2
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION									54.3	47.6	46.3
General Corporate
Assets:
TOTAL ASSETS	$ 386.2				$ 335.2				$ 386.2	$ 335.2	$ 389.9