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ASSET RETIREMENT OBLIGATIONS - Schedule of Roll-Forward Activity (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Change in asset retirement obligations    
Balance as of December 31, 2022 $ 291,026  
Additional liabilities incurred 42,549  
Accretion expense 12,134  
Liabilities settled (15,340)  
Balance as of September 30, 2023 330,369  
Current portion 25,557 $ 25,557
Long-term portion $ 304,812 $ 265,469