Segments and Related Information - Schedule of Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue:
Consolidated revenue	$ 2,301,792	$ 1,962,658	$ 4,256,192	$ 3,738,082
Consolidated EBITDA	152,300	224,100	231,000	422,500
Consolidated depreciation and amortization	114,700	$ 107,400	225,500	$ 197,900
Consolidated segment assets	$ 7,404,686		$ 7,404,686		$ 7,121,393
Communications | Customer Concentration Risk | Revenue | Utilities
Revenue:
Utilities customers, percentage of communications segment revenue	24.10%	20.60%	24.80%	20.40%
Reportable Segments | Communications
Revenue:
Consolidated revenue	$ 822,000	$ 630,400	$ 1,486,200	$ 1,199,000
Consolidated EBITDA	84,200	72,700	124,600	121,500
Consolidated depreciation and amortization	30,700	23,800	59,700	45,600
Consolidated segment assets	2,349,400		2,349,400		2,100,900
Reportable Segments | Communications | Revision of Prior Period, Adjustment
Revenue:
Consolidated segment assets	69,400		69,400
Reportable Segments | Clean Energy and Infrastructure
Revenue:
Consolidated revenue	494,500	481,500	930,400	831,900
Consolidated EBITDA	(5,200)	15,600	5,600	26,400
Consolidated depreciation and amortization	11,700	10,500	23,100	18,100
Consolidated segment assets	1,045,100		1,045,100		1,067,000
Reportable Segments | Oil and Gas
Revenue:
Consolidated revenue	341,200	621,400	552,200	1,346,900
Consolidated EBITDA	62,800	138,100	84,200	305,700
Consolidated depreciation and amortization	32,200	56,200	63,800	108,300
Consolidated segment assets	1,576,600		1,576,600		1,527,600
Reportable Segments | Oil and Gas | Revision of Prior Period, Adjustment
Revenue:
Consolidated segment assets	77,000		77,000
Reportable Segments | Power Delivery
Revenue:
Consolidated revenue	646,500	232,500	1,296,900	366,000
Consolidated EBITDA	41,400	9,300	87,500	12,900
Consolidated depreciation and amortization	36,800	14,100	72,500	20,200
Consolidated segment assets	2,015,400		2,015,400		2,017,200
Reportable Segments | Power Delivery | Revision of Prior Period, Adjustment
Revenue:
Consolidated segment assets	(192,200)		(192,200)
Reportable Segments | Other
Revenue:
Consolidated revenue	0	0	0	0
Consolidated EBITDA	7,400	8,300	14,400	15,800
Consolidated depreciation and amortization	0	0	0	0
Consolidated segment assets	276,600		276,600		238,100
Eliminations
Revenue:
Consolidated revenue	(2,400)	(3,100)	(9,500)	(5,700)
Corporate
Revenue:
Consolidated EBITDA	(38,300)	(19,900)	(85,300)	(59,800)
Consolidated depreciation and amortization	3,300	$ 2,800	6,400	$ 5,700
Consolidated segment assets	141,600		141,600		$ 170,600
Corporate | Revision of Prior Period, Adjustment
Revenue:
Consolidated segment assets	$ 45,800		$ 45,800