v3.26.1
Fair Value of Financial Instruments (Details-4) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Realized and unrealized gains (losses):    
Included in regulatory liability $ 726 $ 960
Included in earnings [1] 1,382 (553)
Settlements $ (1,382) $ 555
[1] MGE's exchange-traded derivative contracts, over-the-counter party transactions, purchased power agreement, and FTRs are subject to regulatory deferral. These derivatives are therefore marked to fair value and are offset in the financial statements with a corresponding regulatory asset or liability.