Noncontrolling Interest - Summary of Changes in Noncontrolling Interest (Details) - shares	3 Months Ended
	Mar. 31, 2019	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)	28,862,461
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)	64,314,639
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)	166,140
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)	28,696,321
Outstanding, ending balance (in shares)	28,862,461
Percentage of EEH Units Held By Earthstone and Lynden	44.90%	44.70%
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)	166,140
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)	0
Other Entities | 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)	35,452,178
Percentage of EEH Units Held By Others	55.10%	55.30%
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)	0