Goodwill and Intangible Assets - Goodwill (Details)	12 Months Ended
	Dec. 31, 2025 USD ($) report	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units | report	3
Goodwill impairment loss	$ 0	$ 0	$ 0
Goodwill, Change In Goodwill Allocation, Amount	4,500,000
Goodwill [Line Items]
Goodwill	237,400,000	237,400,000
Natural Gas Reportable Segment
Goodwill [Line Items]
Goodwill	168,000,000.0	163,500,000
Natural Gas Liquids Reportable Segment
Goodwill [Line Items]
Goodwill	69,400,000	$ 73,900,000
Natural Gas Reportable Segment - Texas Gas
Goodwill [Line Items]
Goodwill	163,500,000
Natural Gas Reportable Segment - Gulf South and other NG businesses
Goodwill [Line Items]
Goodwill	$ 4,500,000