Acquisitions, Goodwill, and Other Intangible Assets, Net - Rollforward of Goodwill by Segment (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Goodwill [Line Items]
Goodwill		$ 2,245,700
Accumulated impairment loss		(119,300)
Goodwill, net	$ 2,135,683	2,126,366
Goodwill [Roll Forward]
Goodwill, net, beginning balance	2,126,366
Additions from new business combinations	8,900
Measurement period adjustments	700
Currency translation adjustments	(300)
Goodwill, net, ending balance	2,135,683
Communications
Goodwill [Line Items]
Goodwill		646,900
Accumulated impairment loss		0
Goodwill, net	647,600	646,900
Goodwill [Roll Forward]
Goodwill, net, beginning balance	646,900
Additions from new business combinations	0
Measurement period adjustments	700
Currency translation adjustments	0
Goodwill, net, ending balance	647,600
Clean Energy and Infrastructure
Goodwill [Line Items]
Goodwill		742,000
Accumulated impairment loss		0
Goodwill, net	742,000	742,000
Goodwill [Roll Forward]
Goodwill, net, beginning balance	742,000
Additions from new business combinations	0
Measurement period adjustments	0
Currency translation adjustments	0
Goodwill, net, ending balance	742,000
Power Delivery
Goodwill [Line Items]
Goodwill		270,800
Accumulated impairment loss		0
Goodwill, net	279,700	270,800
Goodwill [Roll Forward]
Goodwill, net, beginning balance	270,800
Additions from new business combinations	8,900
Measurement period adjustments	0
Currency translation adjustments	0
Goodwill, net, ending balance	279,700
Oil and Gas
Goodwill [Line Items]
Goodwill		586,000
Accumulated impairment loss		(119,300)
Goodwill, net	466,400	$ 466,700
Goodwill [Roll Forward]
Goodwill, net, beginning balance	466,700
Additions from new business combinations	0
Measurement period adjustments	0
Currency translation adjustments	(300)
Goodwill, net, ending balance	$ 466,400