Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details)	6 Months Ended
	Jun. 30, 2018 shares	Dec. 31, 2017
Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	27,584,638
Outstanding, ending balance (in shares)	28,131,464
Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	63,636,807
Outstanding, ending balance (in shares)	63,978,392
Earthstone Energy Holdings, LLC | Restricted Stock Units
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connection with the vesting of restricted stock units (in shares)	341,585
Earthstone Energy Holdings, LLC | Bold Transaction | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units and Class B Common Stock converted to Class A Common Stock (in shares)	0
Earthstone Energy Incorporation And Lynden United States Of America Incorporation | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	27,584,638
Outstanding, ending balance (in shares)	28,131,464
Percentage of EEH Units Held By Earthstone and Lynden	44.00%	43.30%
Earthstone Energy Incorporation And Lynden United States Of America Incorporation | Earthstone Energy Holdings, LLC | Restricted Stock Units
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connection with the vesting of restricted stock units (in shares)	341,585
Earthstone Energy Incorporation And Lynden United States Of America Incorporation | Earthstone Energy Holdings, LLC | Bold Transaction | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units and Class B Common Stock converted to Class A Common Stock (in shares)	205,241
Other Entities | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	36,052,169
Outstanding, ending balance (in shares)	35,846,928
Percentage of EEH Units Held By Others	56.00%	56.70%
Other Entities | Earthstone Energy Holdings, LLC | Bold Transaction | Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units and Class B Common Stock converted to Class A Common Stock (in shares)	(205,241)