Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details)	6 Months Ended
	Jun. 30, 2019 shares	Dec. 31, 2018
Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	28,696,321
Outstanding, ending balance (in shares)	29,031,504
Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	64,148,499
Outstanding, ending balance (in shares)	64,447,950
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)	299,451
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
EEH Units Held By Earthstone and Lynden US | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	28,696,321
Outstanding, ending balance (in shares)	29,031,504
Percentage of EEH Units Held By Earthstone and Lynden	45.00%	44.70%
EEH Units Held By Earthstone and Lynden US | 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)	299,451
EEH Units Held By Earthstone and Lynden US | 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)	35,732
EEH Units Held By Others | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	35,452,178
Outstanding, ending balance (in shares)	35,416,446
Percentage of EEH Units Held By Others	55.00%	55.30%
EEH Units Held By Others | 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)	(35,732)