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Derivative Financial Instruments - Impact of commodity derivatives on earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivative instruments
Gain (loss) on derivatives - commodity derivatives	$ 13,323	$ (28,395)
Net cash receipts from (payments on) commodity derivatives	6,386	(7,775)
Oil derivatives
Derivative instruments
Gain (loss) on derivatives - commodity derivatives	15,097	(19,579)
Net cash receipts from (payments on) commodity derivatives	1,953	(6,464)
Natural gas derivatives
Derivative instruments
Gain (loss) on derivatives - commodity derivatives	(1,774)	(8,816)
Net cash receipts from (payments on) commodity derivatives	$ 4,433	$ (1,311)

X

- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as operating activities, excluding those designated as hedging instruments.

+ References

No definition available.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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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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