XML 81 R71.htm IDEA: XBRL DOCUMENT v3.23.3
Asset Retirement Obligations - Changes in AROs (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Changes in our AROs:    
AROs at beginning of year $ 51,956 $ 29,658
Liability incurred during the period   23,601
Accretion expense 3,586 1,465
AROs at end of period $ 55,542 $ 54,724