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Fair Value Measurements - Significant Unobservable Inputs (Details) (Gulf Properties, Fair Value Measurements Level 3, USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Gulf Properties | Fair Value Measurements Level 3
Significant Unobservable Inputs
Estimated future payments for plugging and abandonment	$ 426,661sd_FairValueInputsEstimatedCashFlows / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember

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- Definition

Estimated cash flows used as an input to measure fair value.

+ References

No definition available.

+ Details

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- Details

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