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Variable Interest Entities - Royalty Trusts - Distributions (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Variable Interest Entity [Line Items] |  |
Distributions to third-party unitholders | $ 51,256 | $ 32,740
Royalty Trusts |  |
Variable Interest Entity [Line Items] |  |
Total distributions | 76,361 | 52,068
Distributions to third-party unitholders | $ 51,256 | $ 32,740

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- Definition Cash outflow from payment of distributions to noncontrolling interest holders. + References No definition available. + Details
Name: | sd_CashDistributionToNoncontrollingInterest
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Royalty Trust Distributions to Unitholders + References No definition available. + Details
Name: | sd_RoyaltyTrustDistributionsToUnitholders
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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