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SUPPLEMENTAL CONSOLIDATED FINANCIAL STATEMENT INFORMATION - Disaggregated Revenues (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
segment
Jun. 30, 2022
USD ($)
Number of business segments | segment     1  
Operating Revenues $ 20,219 $ 4,765 $ 49,627 $ 26,699
United States        
Operating Revenues 20,116 4,266 38,912 15,024
Canada        
Operating Revenues $ 103 $ 499 $ 10,715 $ 11,675