Net Income (Loss) Per Common Share - Reconciliation of Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income (loss) attributable to Earthstone Energy, Inc.	$ 60,548	$ (33,478)
Net income (loss) per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ 0.57	$ (0.53)
Diluted (in dollars per share)	$ 0.56	$ (0.53)
Weighted average common shares outstanding
Basic (in shares)	105,972,734	63,445,649
Add potentially dilutive securities:
Unvested restricted stock units (in shares)	335,455	0
Unvested performance units (in shares)	1,216,828	0
Diluted weighted average common shares outstanding (in shares)	107,525,017	63,445,649