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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) $ / bbl bbl
Derivative [Line Items]
Fair value assets (liabilities) | $	$ 261,661
NYMEX WTI | Crude Oil | 2020 Fixed price swaps
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	4,733,000
Average swap price (in dollars per barrel)	57.02
Fair value assets (liabilities) | $	$ 134,306
NYMEX WTI | Crude Oil | 2020 Two-way collar
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	2,322,000
Average floor price (in dollars per barrel)	51.12
Average ceiling price (in dollars per barrel)	59.79
Fair value assets (liabilities) | $	$ 50,178
NYMEX WTI | Crude Oil | 2020 Three-way collar
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	4,859,000
Average sub-floor price (in dollars per barrel)	40.75
Average floor price (in dollars per barrel)	53.16
Average ceiling price (in dollars per barrel)	63.61
Fair value assets (liabilities) | $	$ 55,604
NYMEX WTI | Crude Oil | 2021 Fixed price swaps
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	310,000
Average swap price (in dollars per barrel)	56.01
Fair value assets (liabilities) | $	$ 6,661
NYMEX WTI | Crude Oil | 2021 Two-way collar
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	248,000
Average floor price (in dollars per barrel)	51.38
Average ceiling price (in dollars per barrel)	59.33
Fair value assets (liabilities) | $	$ 4,274
NYMEX WTI | Crude Oil | 2021 Three-way collar
Derivative [Line Items]
Total notional amount of oil (in Bbls) | bbl	1,313,000
Average sub-floor price (in dollars per barrel)	40.00
Average floor price (in dollars per barrel)	50.79
Average ceiling price (in dollars per barrel)	62.46
Fair value assets (liabilities) | $	$ 10,638

X

- Definition

Derivative, Sub-Floor Price

+ References

No definition available.

+ Details

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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.

+ Details

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X

- 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.

+ Details

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X

- 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=118260190&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.

+ References

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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