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Quarterly Financial Results (Additional Information) (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Full cost ceiling impairments |  |  |  |  |  |  |  |  | $ 164,800,000 us-gaap_UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense | $ 0 us-gaap_UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense | $ 0 us-gaap_UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense
Asset impairment charges |  |  |  |  |  |  |  |  | 192,768,000 us-gaap_AssetImpairmentCharges | 26,280,000 us-gaap_AssetImpairmentCharges | 316,004,000 us-gaap_AssetImpairmentCharges
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  | (334,011,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | 47,123,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | (241,419,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Permian Properties |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on divestiture |  |  |  |  |  |  |  | (398,900,000)us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_PermianPropertiesMember |  | (398,900,000)us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_PermianPropertiesMember |
Drilling Assets |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  |  |  | 10,600,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_DrillingAssetsMember |  | 3,100,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_DrillingAssetsMember | 11,100,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_DrillingAssetsMember |
Corporate Asset |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  |  |  | 2,900,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_CorporateAssetMember |  |  | 2,900,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_CorporateAssetMember |
Gas Treating Plants and other Midstream Assets |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  | 10,000,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_GasTreatingPlantsandotherMidstreamAssetsMember |  | 2,100,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_GasTreatingPlantsandotherMidstreamAssetsMember |  | 600,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_GasTreatingPlantsandotherMidstreamAssetsMember | 12,200,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_GasTreatingPlantsandotherMidstreamAssetsMember |
Commodity Derivatives |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
(Gain) loss on derivative contracts | (329,200,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | (132,600,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | 85,300,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | 42,500,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | (22,900,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | 132,800,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | (103,700,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | 40,900,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | (334,000,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | 47,100,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember | (241,400,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeInstrumentRiskAxis = sd_CommodityDerivativesMember
Exploration and Production |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Full cost ceiling impairments |  |  |  | 164,800,000 us-gaap_UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense / us-gaap_StatementBusinessSegmentsAxis = sd_OilAndGasExplorationAndProductionMember |  |  |  |  | 164,800,000 us-gaap_UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense / us-gaap_StatementBusinessSegmentsAxis = sd_OilAndGasExplorationAndProductionMember |  |
Exploration and Production | Permian Properties |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on divestiture |  |  |  |  |  |  |  |  |  | (398,900,000)us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_PermianPropertiesMember / us-gaap_StatementBusinessSegmentsAxis = sd_OilAndGasExplorationAndProductionMember |
Drilling and Oil Field Services |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges | $ 24,300,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = sd_DrillingAndOilFieldServicesMember |  | $ 3,100,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = sd_DrillingAndOilFieldServicesMember |  |  |  |  |  | $ 27,400,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = sd_DrillingAndOilFieldServicesMember | $ 11,100,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = sd_DrillingAndOilFieldServicesMember |

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