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Asset Retirement Obligations - Summary of Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
6 Months Ended
Dec. 31, 2022
Jun. 30, 2022
Reconciliation of the beginning and ending asset retirement obligation    
Asset retirement obligations - beginning of period $ 13,921  
Accretion of discount 556  
Asset retirement obligations - end of period 14,477 $ 13,921
Less: current asset retirement obligations (22) (22)
Long-term portion of asset retirement obligations $ 14,455 $ 13,899