Acquisitions and Divestitures - Schedule of Unaudited Pro forma Revenues and Expenses of Assets Acquired and Liabilities Assumed (Details) - Lynden Arrangement [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Revenue	$ 47,679	$ 62,817	$ 112,370
(Loss) income before taxes	(53,510)	(148,609)	32,912
Net (loss) income available to Earthstone common stockholders	$ (54,744)	$ (122,598)	$ 19,518
Pro Forma net (loss) income per common share:
Basic	$ (2.73)	$ (6.99)	$ 1.11
Diluted	$ (2.73)	$ (6.99)	$ 1.11