Quarterly report pursuant to Section 13 or 15(d)

Revenue - Narrative (Details)

v3.20.1
Revenue - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Revenue   $ 4,915   $ 4,827  
Payments from customer   6,800      
Amount owed by customer $ 17,000 17,000      
Deferred revenue 8,287 8,287   $ 7,244 $ 4,304
Pressure Pumping          
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Revenue   17,800      
Shortfall Payments          
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Revenue   4,900 $ 1,000    
Deferred revenue $ 8,300 $ 8,300      
Practical expedients          
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Contract term (greater than) one year