Segments and Related Information - Schedule of Financial Information by Reportable Segment - EBITDA (Details) - USD ($) $ in Thousands	12 Months Ended			24 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2022
EBITDA:
Segment EBITDA	$ 828,100	$ 1,003,800	$ 907,000
Loss on extinguishment of debt	0	0	5,569
2021 Acquisitions
EBITDA:
Acquisition and integration costs		3,600
Bargain purchase gain	3,600
Power Delivery | 2021 Acquisitions
EBITDA:
Bargain purchase gain	200			$ 3,600
Other
EBITDA:
Gain (loss) on investments	2,800
Reportable Segments | Communications
EBITDA:
Segment EBITDA	327,100	269,500	270,100
Reportable Segments | Clean Energy and Infrastructure
EBITDA:
Segment EBITDA	102,800	75,000	80,400
Acquisition and integration costs	6,400
Reportable Segments | Oil and Gas
EBITDA:
Segment EBITDA	163,500	557,600	510,900
Acquisition and integration costs	8,000
Reportable Segments | Power Delivery
EBITDA:
Segment EBITDA	202,900	68,000	14,900
Acquisition and integration costs	39,000
Reportable Segments | Other
EBITDA:
Segment EBITDA	31,800	33,800	30,700
Reportable Segments | Communications Segment
EBITDA:
Acquisition and integration costs	4,700
Corporate
EBITDA:
Gain (loss) on investments	(7,700)	(7,800)	10,100
Bargain purchase gain	200	$ 3,500
Loss on extinguishment of debt			$ 5,600
Corporate | 2021 Acquisitions
EBITDA:
Acquisition and integration costs	$ 27,900