| Name | GainLossOnDerivativeInstrumentsNetPretax |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Gain (Loss) on Derivative Instruments, Net, Pretax | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gain (Loss) on Derivative Instruments, Net, Pretax, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 815 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 4A | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (b) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:GainLossFromPriceRiskManagementActivity | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:GainLossOnOilAndGasHedgingActivity | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:GainOnDerivativeInstrumentsPretax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative | |
us-gaap:LossOnDerivativeInstrumentsPretax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative |