Segments and Related Information - Schedule of Financial Information by Reportable Segment - Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets:
Consolidated assets	$ 8,861,938	$ 8,975,275
Operating Segments | Communications
Assets:
Consolidated assets	1,716,000	1,673,800
Operating Segments | Clean Energy and Infrastructure
Assets:
Consolidated assets	2,509,600	2,706,400
Operating Segments | Power Delivery
Assets:
Consolidated assets	2,464,600	2,489,900
Operating Segments | Pipeline Infrastructure
Assets:
Consolidated assets	1,575,200	1,599,700
Operating Segments | Other
Assets:
Consolidated assets	318,600	318,200
Corporate
Assets:
Consolidated assets	$ 277,900	$ 187,300