Common Stock	3 Months Ended
Mar. 31, 2020
Equity [Abstract]
Common Stock	Common Stock Class A Common Stock At March 31, 2020 and December 31, 2019, there were 29,852,958 and 29,421,131 shares of Class A Common Stock issued and outstanding, respectively. During the three months ended March 31, 2020, as a result of the vesting and settlement of restricted stock units under the Earthstone Energy, Inc. Amended and Restated 2014 Long-Term Incentive Plan (the “2014 Plan”), Earthstone issued 307,529 shares of Class A Common Stock, of which 75,695 shares of Class A Common Stock were retained as treasury stock and canceled to satisfy the related employee income tax liability. During the three months ended March 31, 2019, as a result of the vesting and settlement of restricted stock units under the 2014 Plan, Earthstone issued 225,401 shares of Class A Common Stock, of which 59,261 shares of Class A Common Stock were retained as treasury stock and canceled to satisfy the related employee income tax liability. Class B Common Stock At March 31, 2020 and December 31, 2019, there were 35,060,687 and 35,260,680 shares of Class B Common Stock issued and outstanding, respectively. Each share of Class B Common Stock, together with one EEH Unit, is convertible into one share of Class A Common Stock. During the three months ended March 31, 2020, 199,993 shares of Class B Common Stock and EEH Units were exchanged for an equal number of shares of Class A Common Stock. No shares were converted during the three months ended March 31, 2019.

Common Stock

Class A Common Stock

At March 31, 2020 and December 31, 2019, there were 29,852,958 and 29,421,131 shares of Class A Common Stock issued and outstanding, respectively. During the three months ended March 31, 2020, as a result of the vesting and settlement of restricted stock units under the Earthstone Energy, Inc. Amended and Restated 2014 Long-Term Incentive Plan (the “2014 Plan”), Earthstone issued 307,529 shares of Class A Common Stock, of which 75,695 shares of Class A Common Stock were retained as treasury stock and canceled to satisfy the related employee income tax liability. During the three months ended March 31, 2019, as a result of the vesting and settlement of restricted stock units under the 2014 Plan, Earthstone issued 225,401 shares of Class A Common Stock, of which 59,261 shares of Class A Common Stock were retained as treasury stock and canceled to satisfy the related employee income tax liability.

Class B Common Stock

At March 31, 2020 and December 31, 2019, there were 35,060,687 and 35,260,680 shares of Class B Common Stock issued and outstanding, respectively. Each share of Class B Common Stock, together with one EEH Unit, is convertible into one share of Class A Common Stock. During the three months ended March 31, 2020, 199,993 shares of Class B Common Stock and EEH Units were exchanged for an equal number of shares of Class A Common Stock. No shares were converted during the three months ended March 31, 2019.