v3.25.1
Fair Value Measurements - Fair value for our risk management activities (Details) - Commodity Contracts - Level 3 - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]    
Net derivative balance at beginning of period $ (15,039) $ 4,921
Deferred as a regulatory asset or liability (5,823) (23,600)
Settlements (2,287) 2,708
Transfers into Level 3 from Level 2 (59) 0
Transfers from Level 3 into Level 2 368 0
Net derivative balance at end of period (22,840) (15,971)
Net unrealized gains/losses included in earnings related to instruments still held at end of period $ 0 $ 0