Net Income (Loss) Per Common Share - Reconciliation of Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jul. 06, 2022	Apr. 14, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Net income (loss) attributable to Earthstone Energy, Inc.	$ 144,885	$ (8,871)	$ 111,407	$ (14,704)
Net income (loss) attributable to Earthstone Energy, Inc. from assumed conversion of Series A Preferred Stock	4,351	0	4,351	0
Net income (loss) attributable to Earthstone Energy, Inc. diluted	$ 149,236	$ (8,871)	$ 115,758	$ (14,704)
Net income (loss) per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ 1.85	$ (0.20)	$ 1.57	$ (0.34)
Diluted (in dollars per share)	$ 1.46	$ (0.20)	$ 1.37	$ (0.34)
Weighted average common shares outstanding
Basic (in shares)	78,291,037	44,127,718	70,909,353	43,457,043
Add potentially dilutive securities:
Unvested restricted stock units (in shares)	493,600	0	506,760	0
Unvested performance units (in shares)	2,003,778	0	1,979,770	0
Series A Preferred Stock (in shares)	21,621,621	0	10,870,539	0
Diluted weighted average common shares outstanding (in shares)	102,410,036	44,127,718	84,266,422	43,457,043
Antidilutive securities (in shares)	1,099,800	1,099,800	1,099,800	1,099,800
Preferred stock, shares issued (in shares)	0		0				0
Series A Convertible Preferred Stock
Class of Stock [Line Items]
Net income (loss) attributable to Earthstone Energy, Inc. from assumed conversion of Series A Preferred Stock	$ 4,400		$ 4,400
Add potentially dilutive securities:
Preferred stock, shares issued (in shares)	280,000		280,000			280,000	0
Class A Common Stock | Subsequent Event
Add potentially dilutive securities:
Convertible preferred stock, shares issued upon conversion (in shares)					25,225,225