Common Stock	12 Months Ended
Dec. 31, 2019
Equity [Abstract]
Common Stock	Common Stock Class A Common Stock At December 31, 2019 and 2018, there were 29,421,131 and 28,696,321 shares of Class A Common Stock issued and outstanding, respectively. During the years ended December 31, 2019 and 2018, as a result of the vesting and settlement of restricted stock units under the Earthstone Amended and Restated 2014 Long-Term Incentive Plan (the “2014 Plan”), Earthstone issued 736,706 and 681,585 shares of Class A Common Stock, respectively, of which 203,394 and 169,893 shares of Class A Common Stock, respectively, were retained as treasury stock and canceled to satisfy the related employee income tax liability. Class B Common Stock At December 31, 2019 and 2018, there were 35,260,680 and 35,452,178 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 years ended December 31, 2019 and 2018, 191,498 and 599,991 shares, respectively, of Class B Common Stock and EEH Units were exchanged for an equal number of shares of Class A Common Stock.

Common Stock

12 Months Ended

Dec. 31, 2019

Class A Common Stock

At December 31, 2019 and 2018, there were 29,421,131 and 28,696,321 shares of Class A Common Stock issued and outstanding, respectively. During the years ended December 31, 2019 and 2018, as a result of the vesting and settlement of restricted stock units under the Earthstone Amended and Restated 2014 Long-Term Incentive Plan (the “2014 Plan”), Earthstone issued 736,706 and 681,585 shares of Class A Common Stock, respectively, of which 203,394 and 169,893 shares of Class A Common Stock, respectively, were retained as treasury stock and canceled to satisfy the related employee income tax liability.

Class B Common Stock

At December 31, 2019 and 2018, there were 35,260,680 and 35,452,178 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 years ended December 31, 2019 and 2018, 191,498 and 599,991 shares, respectively, of Class B Common Stock and EEH Units were exchanged for an equal number of shares of Class A Common Stock.