Fair Value Measurements - Schedule of Fair value for our risk management activities (Details) - Commodity Contracts - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	$ (22,840)	$ (15,971)	$ (15,039)	$ 4,921
Deferred as a regulatory asset or liability	2,194	(9,808)	(3,629)	(33,408)
Settlements	1,883	7,240	(404)	9,948
Transfers into Level 3 from Level 2	(329)	(4,565)	(388)	(4,565)
Transfers from Level 3 into Level 2	300	1,464	668	1,464
Balance at end of period	(18,792)	(21,640)	(18,792)	(21,640)
Net unrealized gains/losses included in earnings related to instruments still held at end of period	$ 0	$ 0	$ 0	$ 0