Revenues - Performance Obligation Payment Terms (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]    
Oil and natural gas receivables $ 76,578 $ 66,997
Natural Gas and NGL sales | Minimum    
Disaggregation of Revenue [Line Items]    
Performance obligations billing cycle 30 days  
Natural Gas and NGL sales | Maximum    
Disaggregation of Revenue [Line Items]    
Performance obligations billing cycle 90 days  
Oil sales    
Disaggregation of Revenue [Line Items]    
Performance obligations billing cycle 30 days