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SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES - Other Operating Property and Equipment (Details)
12 Months Ended
Dec. 31, 2021
Buildings  
Other operating property and equipment  
Estimated useful lives 20 years
Automobiles  
Other operating property and equipment  
Estimated useful lives 3 years
Computers  
Other operating property and equipment  
Estimated useful lives 3 years
Computer software  
Other operating property and equipment  
Estimated useful lives 5 years
Fixtures, furniture and equipment  
Other operating property and equipment  
Estimated useful lives 5 years
Trailers  
Other operating property and equipment  
Estimated useful lives 7 years
Heavy equipment | Minimum  
Other operating property and equipment  
Estimated useful lives 8 years
Heavy equipment | Maximum  
Other operating property and equipment  
Estimated useful lives 10 years