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Derivatives - Fair Value of Derivative Contracts (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Derivatives, Fair Value [Line Items] |  |
Derivative assets | $ 338,417 us-gaap_DerivativeFairValueOfDerivativeAsset | $ 50,274 us-gaap_DerivativeFairValueOfDerivativeAsset
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability | (78,200)us-gaap_DerivativeFairValueOfDerivativeLiability
Total net derivative contracts | 338,417 us-gaap_DerivativeFairValueOfDerivativeNet | (27,926)us-gaap_DerivativeFairValueOfDerivativeNet
Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 291,414 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember | 18,368 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember
Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 47,003 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember | 31,906 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember
Current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember | (39,856)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember
Noncurrent liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentLiabilitiesMember | (38,344)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentLiabilitiesMember
Oil price swaps | Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 204,072 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember | 15,887 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember
Oil price swaps | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 36,288 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember | 19,376 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember
Oil price swaps | Current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember | (38,396)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember
Oil price swaps | Noncurrent liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember | (38,344)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_CrudeOilPriceSwapMember
Natural gas price swaps | Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 29,648 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasPriceSwapMember | 1,598 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasPriceSwapMember
Natural gas price swaps | Current liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 0 us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasPriceSwapMember | (1,460)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = sd_CurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasPriceSwapMember
Natural gas basis swaps | Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 350 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasBasisSwapMember | 0 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasBasisSwapMember
Oil collars—three way | Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 56,289 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_OilCollarsThreeWayMember | 706 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_OilCollarsThreeWayMember
Oil collars—three way | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 10,715 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_OilCollarsThreeWayMember | 12,189 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_OilCollarsThreeWayMember
Natural gas collars | Current assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 1,055 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasCollarsMember | 177 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_CurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasCollarsMember
Natural gas collars | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | $ 0 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasCollarsMember | $ 341 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = sd_NoncurrentAssetsMember / us-gaap_DerivativeInstrumentRiskAxis = sd_NaturalGasCollarsMember

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226000-175313 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226000-175313 + Details
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