v3.26.1
Employee Postretirement Benefits - Composition of Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Retirement Benefits [Abstract]    
Net Periodic Benefit Cost (Income) $ (135) $ (603)
Net Amount Amortized Due to the Effect of Regulation 679 320
Net Periodic Benefit Cost (Income) Recognized $ 544 $ (283)