Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Accrued income taxes, current					$ 500	$ 600
Income tax expense (benefit)	$ (486)	$ (1,110)	$ (794)	$ (18)
Deferred income tax expense (benefit)			(794)	(18)
Lynden US
Income Tax Disclosure [Line Items]
Income tax expense (benefit)				(100)
Deferred income tax expense (benefit)			(400)
Earthstone Energy Holdings, LLC
Income Tax Disclosure [Line Items]
Income tax expense (benefit)			(2,600)
Deferred income tax expense (benefit)				60
Earthstone Energy Holdings, LLC | Texas Margin Tax
Income Tax Disclosure [Line Items]
Deferred income tax expense (benefit)			(800)	$ (10)
Current income tax expense (benefit)			$ 400