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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) BTU $ / bbl bbl
Derivative [Line Items]
Fair Value Assets (Liabilities) | $	$ (253,010)
Crude oil | 2021 Fixed price swaps | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	7,975,000
Weighted average swap price (in dollars per barrel)	42.09
Fair Value Assets (Liabilities) | $	$ (130,125)
Crude oil | 2021 Two-way collar | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	459,000
Average ceiling price (in dollars per barrel)	63.82
Average floor price (in dollars per barrel)	45.00
Fair Value Assets (Liabilities) | $	$ (614)
Crude oil | 2022 Fixed price swaps | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	7,245,000
Weighted average swap price (in dollars per barrel)	42.66
Fair Value Assets (Liabilities) | $	$ (82,286)
Crude oil | 2022 Two-way collar | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	636,000
Average ceiling price (in dollars per barrel)	63.82
Average floor price (in dollars per barrel)	45.00
Fair Value Assets (Liabilities) | $	$ (88)
Crude oil | 2023 Fixed price swaps | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	5,265,000
Weighted average swap price (in dollars per barrel)	43.57
Fair Value Assets (Liabilities) | $	$ (39,027)
Crude oil | 2024 Fixed price swaps | NYMEX WTI
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	434,000
Weighted average swap price (in dollars per barrel)	43.68
Fair Value Assets (Liabilities) | $	$ (2,654)
Natural gas | 2021 Fixed price swaps | NYMEX HH
Derivative [Line Items]
Total notional amount of natural gas (in MMBtu) | BTU	11,000,000
Weighted average swap price (in dollars per barrel)	2.84
Fair Value Assets (Liabilities) | $	$ 1,174
Natural gas | 2022 Fixed price swaps | NYMEX HH
Derivative [Line Items]
Total notional amount of natural gas (in MMBtu) | BTU	5,430,000
Weighted average swap price (in dollars per barrel)	2.82
Fair Value Assets (Liabilities) | $	$ 610

X

- Definition

The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

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- Definition

The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

+ References

No definition available.

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

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- Definition

Average fixed price related to the group of price risk swap derivatives.

+ References

No definition available.

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