Acquisitions, Goodwill, and Other Intangible Assets, Net - Rollforward of Goodwill by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Goodwill [Line Items]
Goodwill		$ 2,313,400
Accumulated impairment loss		(110,300)
Goodwill, net	$ 2,204,912	2,203,077
Goodwill [Roll Forward]
Goodwill, net, beginning balance	2,203,077
Measurement period adjustments	1,800
Goodwill, net, ending balance	2,204,912
Communications
Goodwill [Line Items]
Goodwill		546,500
Accumulated impairment loss		0
Goodwill, net	546,500	546,500
Goodwill [Roll Forward]
Goodwill, net, beginning balance	546,500
Measurement period adjustments	0
Goodwill, net, ending balance	546,500
Clean Energy and Infrastructure
Goodwill [Line Items]
Goodwill		742,300
Accumulated impairment loss		0
Goodwill, net	742,300	742,300
Goodwill [Roll Forward]
Goodwill, net, beginning balance	742,300
Measurement period adjustments	0
Goodwill, net, ending balance	742,300
Power Delivery
Goodwill [Line Items]
Goodwill		395,400
Accumulated impairment loss		0
Goodwill, net	397,200	395,400
Goodwill [Roll Forward]
Goodwill, net, beginning balance	395,400
Measurement period adjustments	1,800
Goodwill, net, ending balance	397,200
Pipeline Infrastructure
Goodwill [Line Items]
Goodwill		629,200
Accumulated impairment loss		(110,300)
Goodwill, net	518,900	$ 518,900
Goodwill [Roll Forward]
Goodwill, net, beginning balance	518,900
Measurement period adjustments	0
Goodwill, net, ending balance	$ 518,900