v3.26.1
Asset Retirement Obligations - Changes in AROs (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Changes in our AROs:    
AROs at beginning of year $ 68,770 $ 62,947
Accretion expense 3,112 2,847
AROs at end of period $ 71,882 $ 65,794