Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	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 (in shares)		231,834
Outstanding, ending balance (in shares)	44,104,541
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)	78,535,881
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)	463,495
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 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
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Outstanding, beginning balance (in shares)	30,343,421
Outstanding, ending balance (in shares)	44,104,541
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)	463,495
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)	578,031
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
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Percentage of EEH Units Held By Earthstone and Lynden	56.20%		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)	34,431,340
EEH Units Held By Others | 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)	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)	(578,031)
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
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Percentage of EEH Units Held By Others	43.80%		53.60%