Fair Value Measurements - Schedule of Fair value for our risk management activities (Details) - Commodity Contracts - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	$ (15,039)	$ 4,921
Deferred as a regulatory asset or liability	(30,006)	(60,965)
Settlements	21,907	44,156
Transfers into Level 3 from Level 2	(1,240)	(4,635)
Transfers from Level 3 into Level 2	668	1,484
Balance at end of period	(23,710)	(15,039)
Net unrealized gains/losses included in earnings related to instruments still held at end of period	$ 0	$ 0