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Related Party Transactions (Details) - USD ($)
shares in Thousands, $ in Millions
3 Months Ended
Mar. 31, 2021
Feb. 12, 2020
Mar. 31, 2021
Related Party Transaction [Line Items]      
Proceeds from sale of interest in oil and gas leases   $ 0.4  
Tracker Purchase Agreement      
Related Party Transaction [Line Items]      
Cash consideration $ 29.6    
Shares of Earthstone Class A Common Stock Issued (in shares)     4,700
Ownership interest 49.00%   49.00%
Settled Litigation | Insurance Settlement      
Related Party Transaction [Line Items]      
Settlement reimbursement     $ 1.1