Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total Earthstone Energy, Inc. Equity	Noncontrolling Interest	Restricted Stock Units Common Stock Class A Common Stock	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Accumulated Deficit	Cumulative Effect, Period of Adoption, Adjustment Total Earthstone Energy, Inc. Equity	Cumulative Effect, Period of Adoption, Adjustment Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	$ 826,492		$ 29	$ 35	$ 517,073	$ (182,497)	$ 334,640	$ 491,852		$ 166	$ 67	$ 67	$ 99
Beginning balance (in shares) at Dec. 31, 2018			28,696,321	35,452,178
Beginning balance at Dec. 31, 2018	826,492		$ 29	$ 35	517,073	(182,497)	334,640	491,852		166	67	67	99
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	790,031		$ 29	$ 35	518,889	(199,634)	319,319	470,712		166	67	67	99
Stock-based compensation expense	2,212				2,212		2,212
Vesting of restricted stock units, net of taxes paid (in shares)									166,140
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings (in shares)			59,261
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings	(396)				(396)		(396)
Cancellation of treasury shares (in shares)			(59,261)
Net income (loss)	(38,443)					(17,204)	(17,204)	(21,239)
Ending balance (in shares) at Mar. 31, 2019			28,862,461	35,452,178
Ending balance at Mar. 31, 2019	$ 790,031		$ 29	$ 35	518,889	(199,634)	319,319	470,712
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Beginning balance (in shares) at Dec. 31, 2018			28,696,321	35,452,178
Beginning balance at Dec. 31, 2018	$ 826,492		$ 29	$ 35	517,073	(182,497)	334,640	491,852		166	67	67	99
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	811,563		$ 29	$ 35	521,361	(190,857)	330,568	480,995		$ 166	$ 67	$ 67	$ 99
Class B Common Stock converted to Class A Common Stock (in shares)		35,732
Net income (loss)	(18,907)
Ending balance (in shares) at Jun. 30, 2019			29,031,504	35,416,446
Ending balance at Jun. 30, 2019	811,563		$ 29	$ 35	521,361	(190,857)	330,568	480,995
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	790,031		$ 29	$ 35	518,889	(199,634)	319,319	470,712
Beginning balance (in shares) at Mar. 31, 2019			28,862,461	35,452,178
Beginning balance at Mar. 31, 2019	790,031		$ 29	$ 35	518,889	(199,634)	319,319	470,712
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	811,563		$ 29	$ 35	521,361	(190,857)	330,568	480,995
Stock-based compensation expense	2,261				2,261		2,261
Vesting of restricted stock units, net of taxes paid (in shares)									133,311
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings (in shares)			43,344
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings	(265)				(265)		(265)
Cancellation of treasury shares (in shares)			(43,344)
Class B Common Stock converted to Class A Common Stock (in shares)		35,732	35,732	(35,732)
Class B Common Stock converted to Class A Common Stock	0				476		476	(476)
Net income (loss)	19,536					8,777	8,777	10,759
Ending balance (in shares) at Jun. 30, 2019			29,031,504	35,416,446
Ending balance at Jun. 30, 2019	$ 811,563		$ 29	$ 35	521,361	(190,857)	330,568	480,995
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
ASC 842 implementation	$ 811,563		29	35	521,361	(190,857)	330,568	480,995
ASC 842 implementation	835,751		$ 29	$ 35	527,246	(181,711)	345,599	490,152
Beginning balance (in shares) at Dec. 31, 2019			29,421,131	35,260,680
Beginning balance at Dec. 31, 2019	835,751		$ 29	$ 35	527,246	(181,711)	345,599	490,152
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	874,946		30	$ 35	532,623	(165,003)	367,685	507,261
Stock-based compensation expense	2,694				2,694		2,694
Vesting of restricted stock units, net of taxes paid (in shares)									231,834
Vesting of restricted stock units, net of taxes paid	1		$ 1				1
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings (in shares)			75,695
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings	(214)				(214)		(214)
Cancellation of treasury shares (in shares)			(75,695)
Class B Common Stock converted to Class A Common Stock (in shares)			199,993	(199,993)
Class B Common Stock converted to Class A Common Stock	0				2,897		2,897	(2,897)
Net income (loss)	36,714					16,708	16,708	20,006
Ending balance (in shares) at Mar. 31, 2020			29,852,958	35,060,687
Ending balance at Mar. 31, 2020	874,946		$ 30	$ 35	532,623	(165,003)	367,685	507,261
Beginning balance (in shares) at Dec. 31, 2019			29,421,131	35,260,680
Beginning balance at Dec. 31, 2019	835,751		$ 29	$ 35	527,246	(181,711)	345,599	490,152
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	841,435		$ 30	$ 35	535,049	(181,342)	353,772	487,663
Class B Common Stock converted to Class A Common Stock (in shares)		201,993
Net income (loss)	805
Ending balance (in shares) at Jun. 30, 2020			30,020,357	35,058,687
Ending balance at Jun. 30, 2020	841,435		$ 30	$ 35	535,049	(181,342)	353,772	487,663
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	874,946		$ 30	$ 35	532,623	(165,003)	367,685	507,261
Beginning balance (in shares) at Mar. 31, 2020			29,852,958	35,060,687
Beginning balance at Mar. 31, 2020	874,946		$ 30	$ 35	532,623	(165,003)	367,685	507,261
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	841,435		$ 30	$ 35	535,049	(181,342)	353,772	487,663
Stock-based compensation expense	2,568				2,568		2,568
Vesting of restricted stock units, net of taxes paid (in shares)									165,399
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings (in shares)			57,810
Vested restricted stock units retained by the Company in exchange for payment of recipient mandatory tax withholdings	(170)				(170)		(170)
Cancellation of treasury shares (in shares)			(57,810)
Class B Common Stock converted to Class A Common Stock (in shares)		2,000	2,000	(2,000)
Class B Common Stock converted to Class A Common Stock	0				28		28	(28)
Net income (loss)	(35,909)					(16,339)	(16,339)	(19,570)
Ending balance (in shares) at Jun. 30, 2020			30,020,357	35,058,687
Ending balance at Jun. 30, 2020	841,435		$ 30	$ 35	535,049	(181,342)	353,772	487,663
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ASC 842 implementation	$ 841,435		$ 30	$ 35	$ 535,049	$ (181,342)	$ 353,772	$ 487,663