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Intangible Assets - Narrative (Details)
$ in Thousands
3 Months Ended
Jul. 31, 2018
tranche
shares
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Non-Compete        
Finite-Lived Intangible Assets [Line Items]        
Estimated cost of intangible assets | $   $ 44,400 $ 44,400 $ 44,400
Non-Compete | Minimum        
Finite-Lived Intangible Assets [Line Items]        
Estimated economic life of intangible asset   2 years 6 months    
Non-Compete | Maximum        
Finite-Lived Intangible Assets [Line Items]        
Estimated economic life of intangible asset   4 years    
EnerVest Business Combination | Non-Compete | Tranche One        
Finite-Lived Intangible Assets [Line Items]        
Estimated economic life of intangible asset 2 years 6 months      
EnerVest Business Combination | Non-Compete | Tranche Two        
Finite-Lived Intangible Assets [Line Items]        
Estimated economic life of intangible asset 4 years      
EnerVest Business Combination | Class A Common Stock | Affiliate of EnerVest        
Finite-Lived Intangible Assets [Line Items]        
Number of shares authorized for issuance based on achievement of certain stock price thresholds (in shares) 4,000,000.0      
Number of tranches | tranche 2      
EnerVest Business Combination | Class A Common Stock | Affiliate of EnerVest | Tranche One        
Finite-Lived Intangible Assets [Line Items]        
Number of shares authorized for issuance based on achievement of certain stock price thresholds (in shares) 2,000,000.0      
EnerVest Business Combination | Class A Common Stock | Affiliate of EnerVest | Tranche Two        
Finite-Lived Intangible Assets [Line Items]        
Number of shares authorized for issuance based on achievement of certain stock price thresholds (in shares) 2,000,000.0