Financial Information by Business Segment - Schedule of Segment Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating segments information
Segment operating income	$ 496,250	$ 182,720
Unallocated amounts:
Corporate selling, general and administrative	91,464	73,053
Corporate other operating expenses	13,474	11,973
Income from investments	(26,462)	(2,260)
Other income	(623)	(205)
Loss on debt extinguishment	11,680	3,449
Interest expense, net	117,569	54,371
Income before income taxes	394,086	127,365
MVP Joint Venture | Transmission
Unallocated amounts:
Equity earnings from Company's investments	24,400
Operating Segments
Operating segments information
Segment operating income	526,137	194,540
Unallocated amounts:
Corporate selling, general and administrative	73,486	73,053
Corporate other operating expenses	6,845	2,600
Operating Segments | Transmission
Operating segments information
Segment operating income	103,150
Unallocated amounts:
Corporate selling, general and administrative	9,419
Corporate other operating expenses	(536)
Intersegment eliminations and other
Operating segments information
Segment operating income	(702)	0
Unallocated amounts
Operating segments information
Segment operating income	(29,887)	(11,820)
Unallocated revenue	76	12
Unallocated amounts:
Corporate selling, general and administrative	17,978	0
Corporate depreciation and amortization	4,654	2,459
Corporate other operating expenses	6,629	9,373
Income from investments	(26,462)	(2,260)
Other income	(623)	(205)
Loss on debt extinguishment	11,680	3,449
Interest expense, net	$ 117,569	$ 54,371