Segments and Related Information - Schedule of Financial Information by Reportable Segment - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets:
Consolidated segment assets	$ 7,121,393	$ 5,227,849	$ 4,997,000
Reportable Segments | Communications
Assets:
Consolidated segment assets	2,031,500	1,941,900	1,958,100
Reportable Segments | Clean Energy and Infrastructure
Assets:
Consolidated segment assets	1,067,000	653,700	570,500
Reportable Segments | Oil and Gas
Assets:
Consolidated segment assets	1,450,600	1,631,100	1,762,400
Reportable Segments | Power Delivery
Assets:
Consolidated segment assets	2,209,400	541,600	463,900
Reportable Segments | Other
Assets:
Consolidated segment assets	238,100	191,800	192,200
Corporate
Assets:
Consolidated segment assets	$ 124,800	$ 267,800	$ 49,900