Segment Information - Schedule of Segment Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Segment Reporting [Line Items]
TOTAL NET SALES	$ 1,711,800,000	$ 1,484,300,000	$ 3,228,500,000	$ 2,849,500,000
Total Cost of Goods Sold	1,098,800,000	932,200,000	2,110,200,000	1,854,800,000
Total Gross Profit	613,000,000.0	552,100,000	1,118,300,000	994,700,000
Total Selling and Administrative Expenses	264,400,000	215,800,000	505,900,000	428,000,000.0
Total Operating Income	348,600,000	336,300,000	612,400,000	566,700,000
Loss on disposition of business	0	(400,000)	0	(400,000)
Interest expense, net	(39,100,000)	(14,500,000)	(61,100,000)	(28,300,000)
Other (expense) income, net	(5,800,000)	(6,200,000)	(11,200,000)	(11,500,000)
Income before income taxes	$ 303,700,000	$ 315,200,000	$ 540,100,000	$ 526,500,000
Total Operating Income as a % of Net Sales	20.40%	22.70%	19.00%	19.90%
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES	$ 37,000,000.0	$ 39,900,000	$ 77,600,000	$ 65,900,000
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION	67,600,000	48,300,000	127,800,000	95,200,000
Assets [Abstract]
Assets	11,846,200,000		11,846,200,000		$ 8,228,800,000
Utility Solutions
Segment Reporting [Line Items]
TOTAL NET SALES	1,025,800,000	935,500,000	1,974,700,000	1,792,600,000
Electrical Solutions
Segment Reporting [Line Items]
TOTAL NET SALES	686,000,000.0	548,800,000	1,253,800,000	1,056,900,000
Operating Segments | Utility Solutions
Segment Reporting [Line Items]
TOTAL NET SALES	1,025,800,000	935,500,000	1,974,700,000	1,792,600,000
Total Cost of Goods Sold	654,800,000	597,600,000	1,286,600,000	1,183,000,000
Total Gross Profit	371,000,000.0	337,900,000	688,100,000	609,600,000
Total Selling and Administrative Expenses	137,100,000	119,700,000	279,100,000	240,600,000
Total Operating Income	$ 233,900,000	$ 218,200,000	$ 409,000,000.0	$ 369,000,000.0
Total Operating Income as a % of Net Sales	22.80%	23.30%	20.70%	20.60%
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES	$ 20,600,000	$ 24,600,000	$ 46,600,000	$ 35,900,000
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION	44,100,000	34,400,000	90,000,000.0	68,200,000
Assets [Abstract]
Assets	5,659,900,000		5,659,900,000		5,603,800,000
Operating Segments | Electrical Solutions
Segment Reporting [Line Items]
TOTAL NET SALES	686,000,000.0	548,800,000	1,253,800,000	1,056,900,000
Total Cost of Goods Sold	444,000,000.0	334,600,000	823,600,000	671,800,000
Total Gross Profit	242,000,000.0	214,200,000	430,200,000	385,100,000
Total Selling and Administrative Expenses	127,300,000	96,100,000	226,800,000	187,400,000
Total Operating Income	$ 114,700,000	$ 118,100,000	$ 203,400,000	$ 197,700,000
Total Operating Income as a % of Net Sales	16.70%	21.50%	16.20%	18.70%
Capital Expenditures:
TOTAL CAPITAL EXPENDITURES	$ 16,400,000	$ 15,300,000	$ 31,000,000.0	$ 30,000,000.0
Depreciation and Amortization:
TOTAL DEPRECIATION AND AMORTIZATION	23,500,000	$ 13,900,000	37,800,000	$ 27,000,000.0
Assets [Abstract]
Assets	5,860,800,000		5,860,800,000		2,238,800,000
General Corporate
Assets [Abstract]
Assets	$ 325,500,000		$ 325,500,000		$ 386,200,000