Net Income Per Common Share - Reconciliation of Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income attributable to Earthstone Energy, Inc.	$ 58,042	$ 144,885	$ 118,590	$ 111,407
Net income (loss) attributable to Earthstone Energy, Inc. from assumed conversion of Series A Convertible Preferred Stock	0	4,351	0	4,351
Net income attributable to Earthstone Energy, Inc. - Diluted	$ 58,042	$ 149,236	$ 118,590	$ 115,758
Net income per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ 0.55	$ 1.85	$ 1.12	$ 1.57
Diluted (in dollars per share)	$ 0.54	$ 1.46	$ 1.10	$ 1.37
Weighted average common shares outstanding
Basic (in shares)	106,209,657	78,291,037	106,091,850	70,909,353
Add potentially dilutive securities:
Unvested restricted stock units (in shares)	204,310	493,600	276,434	506,760
Unvested performance units (in shares)	922,728	2,003,778	1,069,778	1,979,770
Series A Convertible Preferred Stock (in shares)	0	21,621,621	0	10,870,539
Diluted weighted average common shares outstanding (in shares)	107,336,695	102,410,036	107,438,062	84,266,422