Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Details)

v3.20.2
Commitments and Contingencies - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
hp
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Obligation with Joint and Several Liability Arrangement [Line Items]      
Deposit on property and equipment $ 6.1    
Supplies expense 5.3 $ 9.5  
Estimated indirect benefit 0.2 $ 0.3  
Letters of credit $ 1.5   $ 1.5
DuraStim      
Obligation with Joint and Several Liability Arrangement [Line Items]      
Purchase options, property and equipment | hp 108,000    
Equipment and Other Assets      
Obligation with Joint and Several Liability Arrangement [Line Items]      
Deposit on property and equipment $ 1.2    
Former Executive Officer | LandCo      
Obligation with Joint and Several Liability Arrangement [Line Items]      
Noncontrolling equity interest (as a percent) 44.00%