Quarterly report pursuant to Section 13 or 15(d)

Revenue - Narrative (Details)

v3.20.2
Revenue - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Revenue     $ 14,928   $ 4,827  
Payments from customer     6,800      
Amount owed by customer $ 36,100   36,100      
Interest on delinquent accounts 1,099 $ 0 2,232 $ 0    
Deferred revenue 10,761   10,761   7,244 $ 4,304
Receivables from related parties 38,676   38,676   7,523  
Muskie Proppant LLC            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Revenue     5,600      
Payments from customer     4,400   $ 1,300  
Receivables from related parties 2,400   2,400      
Pressure Pumping            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Revenue     34,700      
Shortfall Payments            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Revenue 4,900 $ 300 14,700 $ 1,300    
Deferred revenue $ 10,800   $ 10,800      
Practical expedients            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Contract term     one year