Name:	fang_DerivativeSubFloorPrice
Namespace Prefix:	fang_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

No definition available.

Name:	us-gaap_DerivativeCapPrice
Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

No definition available.

Name:	us-gaap_DerivativeFloorPrice
Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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

No definition available.

Name:	us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure
Namespace Prefix:	us-gaap_
Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration

Nominal volume used to calculate payments on a derivative instrument.

No definition available.

Name:	us-gaap_DerivativeNonmonetaryNotionalAmountVolume
Namespace Prefix:	us-gaap_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	duration

Fixed price related to the price risk swap derivative.

No definition available.

Name:	us-gaap_DerivativeSwapTypeFixedPrice
Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_WTICushingOilSwaps2018Member
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_WTIMagellanEastHoustonOilSwaps2018Member
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_BRENTOilSwaps2018Member
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_OilBasisSwaps2018Member
Namespace Prefix:
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Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_NaturalGasSwaps2018Member
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_NaturalGasSwaps2019Member
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_A2018ThreeWayCollarsWTIMagellanEastHoustonMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_A2019ThreeWayCollarsWTIMember
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Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=fang_A2019ThreeWayCollarsBRENTMember
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