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Variable Interest Entities - Royalty Trusts - Assets and Liabilities Included in Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
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Variable Interest Entity |  |
Cumulative full cost ceiling limitation impairment | $ 3,700.0 sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation | $ 3,500.0 sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation
Royalty Trusts |  |
Variable Interest Entity |  |
Reserves for expenses | 3.0 sd_ReservesForExpenses / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | 3.0 sd_ReservesForExpenses / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember
Cumulative full cost ceiling limitation impairment | $ 42.3 sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | $ 0 sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember

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- Definition Oil and Gas Property, Cumulative Impairment based on Ceiling Test Calculation. + References No definition available. + Details
Name: | sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Reserves held by the trustee for future general and administrative expenses. + References No definition available. + Details
Name: | sd_ReservesForExpenses
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=sd_RoyaltyTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |