v3.26.1
Asset Retirement Obligations - Changes in AROs (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Changes in our AROs:    
AROs at beginning of year $ 68,770 $ 62,947
Accretion expense 1,539 1,408
AROs at end of period $ 70,309 $ 64,355