Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
December 31, 2018 (in shares)	28,696,321
December 31, 2019 (in shares)	29,421,131	28,696,321
Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
December 31, 2018 (in shares)	64,148,499
December 31, 2019 (in shares)	64,681,811	64,148,499
Earthstone Energy Holdings, LLC | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH units issued in connection with the vesting of restricted stock units and issuance of class A common stock (in shares)	533,312
Earthstone Energy Holdings, LLC | EEH Units Held By Earthstone and Lynden US
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
December 31, 2018 (in shares)	28,696,321
December 31, 2019 (in shares)	29,421,131	28,696,321
Percentage of EEH units held by Earthstone and Lynden	45.50%	44.70%
Earthstone Energy Holdings, LLC | EEH Units Held By Earthstone and Lynden US | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH units issued in connection with the vesting of restricted stock units and issuance of class A common stock (in shares)	533,312
Class B common stock converted to class A common stock (in shares)	(191,498)
Earthstone Energy Holdings, LLC | EEH Units Held By Others
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
December 31, 2018 (in shares)	35,452,178
December 31, 2019 (in shares)	35,260,680	35,452,178
Percentage of EEH units held by others	54.50%	55.30%
Earthstone Energy Holdings, LLC | EEH Units Held By Others | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Class B common stock converted to class A common stock (in shares)	(191,498)