Subsequent Events (Details)	Apr. 14, 2022 USD ($) $ / shares shares	Apr. 12, 2022 USD ($)	Jan. 30, 2022 USD ($) shares
Bighorn Acquisition
Subsequent Event [Line Items]
Cash consideration			$ 770,000,000
Shares of earthstone class A common stock issued (in shares) | shares			6,808,511
Subsequent Event | Bighorn Acquisition
Subsequent Event [Line Items]
Cash consideration	$ 638,900,000
Shares of earthstone class A common stock issued (in shares) | shares	5,650,977
Senior Notes | Subsequent Event | 8.000% Senior Notes Due 2027
Subsequent Event [Line Items]
Debt instrument, face amount		$ 550,000,000
Interest rate, stated percentage		8.00%
Proceeds from issuance of debt, net		$ 540,400,000
Convertible Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction (in shares) | shares	280,000
Sale of stock, proceeds received on transaction	$ 280,000,000
Preferred stock, dividend rate, percentage	8.00%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares	$ 1,000
Class A Common Stock | Subsequent Event
Subsequent Event [Line Items]
Preferred stock, conversion ratio	90.0900900900901