Annual report pursuant to Section 13 and 15(d)

Contingencies - Narrative (Details)

v3.19.3.a.u2
Contingencies - Narrative (Details)
1 Months Ended 12 Months Ended
Apr. 15, 2019
violation
Dec. 11, 2013
violation
Jan. 31, 2020
USD ($)
well
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Loss Contingencies [Line Items]            
Number of sites with violation | violation 2 1        
Insurance proceeds       $ 100,000 $ 200,000 $ 0
Uninsured cash amount       5,600,000    
Maximum            
Loss Contingencies [Line Items]            
Cash, FDIC insured amount       $ 250,000    
Subsequent Event            
Loss Contingencies [Line Items]            
Gain (Loss) Related to Litigation Settlement     $ 1,700,000      
Number Of Well Pad Improvements | well     17