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v2.4.1.9

Restatement of Previously Issued Financial Statements - Additional Information (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013
Restatement Adjustment |  |  |
Shortfall amount accrued | $ 8.3 sd_ShortfallAccrued / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember |  | $ 8.0 sd_ShortfallAccrued / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Treating Agreement |  |  |
Contract agreement, term | 30 years |  |
Shortfall amount accrued | $ 8.3 sd_ShortfallAccrued / us-gaap_LossContingenciesByNatureOfContingencyAxis = sd_TreatingAgreementMember | $ 32.7 sd_ShortfallAccrued / us-gaap_LossContingenciesByNatureOfContingencyAxis = sd_TreatingAgreementMember | $ 8.0 sd_ShortfallAccrued / us-gaap_LossContingenciesByNatureOfContingencyAxis = sd_TreatingAgreementMember

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- Definition Contract Term + References No definition available. + Details
Name: | sd_ContractTerm
Namespace Prefix: | sd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Shortfall Accrued + References No definition available. + Details
Name: | sd_ShortfallAccrued
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=sd_TreatingAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |