Annual report pursuant to Section 13 and 15(d)

LEASES - Narrative (Details)

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LEASES - Narrative (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Mar. 31, 2013
Operating Leases              
Cash paid for operating lease   $ 400 $ 400 $ 400      
Discount rate   6.70%          
ROU asset (derecognition)   $ 409 709        
Present value of future lease payments (lease obligation)   466          
Operating lease right-of-use asset cost   1,200 1,200        
Accumulated amortization   800 500        
Operating lease, expense   300 300 400      
Finance Leases              
Funds to purchase additional hydraulic fracturing fleets and other equipment   143,523 100,603 $ 502,894      
Cash paid for finance lease     30        
Short-Term Leases              
Asset lease   600 $ 1,000        
Operating lease, lease income   $ 3,000          
Real Estate Lease              
Operating Leases              
Term of contract             10 years
Renewal term             10 years
Lease term         4 years    
Crew Camp Lease              
Operating Leases              
Term of contract   1 year 3 months 18 days          
Ground Lease              
Finance Leases              
Term of contract           10 years  
Ground Lease | Land              
Finance Leases              
Funds to purchase additional hydraulic fracturing fleets and other equipment $ 2,500            
Accounting Standards Update 2016-02              
Operating Leases              
Present value of future lease payments (lease obligation)         $ 2,000    
Finance Leases              
Non-cash paid         $ 3,100