Goodwill and Other Intangible Assets, net - Schedule of Changes in Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2026 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,060.8
Prior year acquisitions	3.5
Current year acquisitions	1,303.9
Foreign currency translation	0.0
Goodwill, ending balance	4,368.2
Utility Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	2,384.0
Prior year acquisitions	3.5
Current year acquisitions	0.0
Foreign currency translation	0.8
Goodwill, ending balance	2,388.3
Electrical Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	676.8
Prior year acquisitions	0.0
Current year acquisitions	1,303.9
Foreign currency translation	(0.8)
Goodwill, ending balance	$ 1,979.9