Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Disaggregation of Revenue
Amounts due from contracts with customers	$ 644.8		$ 644.8		$ 939.9
Gathering | Third-party contracts
Disaggregation of Revenue
Weighted average remaining term	10 years		10 years
Gathering | Affiliate contracts
Disaggregation of Revenue
Weighted average remaining term	13 years		13 years
Transmission | Third-party contracts
Disaggregation of Revenue
Weighted average remaining term	10 years		10 years
Transmission | Affiliate contracts
Disaggregation of Revenue
Weighted average remaining term	13 years		13 years
Natural Gas, Oil, and NGLs Sales
Disaggregation of Revenue
Number of days in which payment is required			25 days
Pipeline Revenue | Gathering
Disaggregation of Revenue
Number of days in which payment is required			21 days
Number of days in which payment is invoiced			1 month
Pipeline Revenue | Transmission
Disaggregation of Revenue
Number of days in which payment is required			10 days
Gathering revenues supported by MVCs: | Gathering | Firm reservation fee
Disaggregation of Revenue
Unbilled revenues	$ 4.1	$ 1.8	$ 15.3	$ 1.8