Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
Class A Common Stock
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)		30,343,421
EEH Units issued in connection with the vesting of restricted stock units and performance-based units (in shares)	165,399
Outstanding, ending balance (in shares)		44,293,062
Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)		65,352,792
Outstanding, ending balance (in shares)		78,690,939
Earthstone Energy Holdings, LLC | Restricted Stock Units And Performance Units
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connection with the vesting of restricted stock units and performance-based units (in shares)		618,553
Earthstone Energy Holdings, LLC | IRM Acquisition
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connect with the IRM Acquisition (in shares)		12,719,594
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)		30,343,421
Outstanding, ending balance (in shares)		44,293,062
EEH Units Held By Earthstone and Lynden US | Earthstone Energy Holdings, LLC | Restricted Stock Units And Performance Units
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connection with the vesting of restricted stock units and performance-based units (in shares)		618,553
EEH Units Held By Earthstone and Lynden US | Earthstone Energy Holdings, LLC | IRM Acquisition
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connect with the IRM Acquisition (in shares)		12,719,594
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)		611,494
EEH Units Held By Earthstone and Lynden US | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Percentage of EEH Units Held By Earthstone and Lynden		56.30%	46.40%
EEH Units Held By Others | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)		35,009,371
Outstanding, ending balance (in shares)		34,397,877
EEH Units Held By Others | Earthstone Energy Holdings, LLC | Restricted Stock Units And Performance Units
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connection with the vesting of restricted stock units and performance-based units (in shares)		0
EEH Units Held By Others | Earthstone Energy Holdings, LLC | IRM Acquisition
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
EEH Units issued in connect with the IRM Acquisition (in shares)		0
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)		(611,494)
EEH Units Held By Others | Earthstone Energy Holdings, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Percentage of EEH Units Held By Others		43.70%	53.60%