Supplemental Selected Quarterly Financial Data (Unaudited) - Schedule of Supplemental Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Oil and gas revenues	$ 144,016	$ 110,384	$ 89,671	$ 75,572	$ 36,675	$ 41,047	$ 21,663	$ 45,138	$ 66,788	$ 39,204	$ 44,542	$ 40,728	$ 419,643	$ 144,523	$ 191,262
Income from operations	73,562	54,947	37,059	24,513	(4,694)	(4,484)	(15,067)	(60,368)	22,776	9,564	12,348	10,444	190,081	(84,613)	55,132
Net income (loss) attributable to Earthstone Energy, Inc.	$ 39,770	$ 10,418	$ (8,871)	$ (5,833)	$ (8,471)	$ (5,445)	$ (16,339)	$ 16,708	$ (2,624)	$ 11,770	$ 8,777	$ (17,204)	$ 35,484	$ (13,547)	$ 719
Net income (loss) per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ 0.76	$ 0.21	$ (0.20)	$ (0.14)	$ (0.28)	$ (0.18)	$ (0.55)	$ 0.57	$ (0.09)	$ 0.41	$ 0.30	$ 0.60	$ 0.75	$ (0.45)	$ 0.02
Diluted (in dollars per share)	$ 0.72	$ 0.20	$ (0.20)	$ (0.14)	$ (0.28)	$ (0.18)	$ (0.55)	$ 0.57	$ (0.09)	$ 0.41	$ 0.30	$ 0.60	$ 0.71	$ (0.45)	$ 0.02