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Business Segment Information - Major Customers (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales | $ 465,108 us-gaap_Revenues | $ 493,603 us-gaap_Revenues | $ 512,987 us-gaap_Revenues | $ 511,690 us-gaap_Revenues | $ 541,775 us-gaap_Revenues | [1] | $ 532,798 us-gaap_Revenues | [1] | $ 478,434 us-gaap_Revenues | [1] | $ 381,635 us-gaap_Revenues | [1] | $ 1,983,388 us-gaap_Revenues | $ 1,934,642 us-gaap_Revenues | [2] | $ 1,415,213 us-gaap_Revenues
Plains Marketing, L.P. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  | 491,258 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember | 426,339 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember |  | 276,285 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember
Percentage of revenue |  |  |  |  |  |  |  |  |  |  |  |  | 24.80%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember | 15.60%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember |  | 19.50%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_PlainsMarketingLPMember
Enterprise Crude Oil, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |  | 394,162 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_EnterpriseCrudeOilLlcMember |  | 319,277 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_EnterpriseCrudeOilLlcMember
Percentage of revenue |  |  |  |  |  |  |  |  |  |  |  |  |  | 14.40%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_EnterpriseCrudeOilLlcMember |  | 22.60%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_EnterpriseCrudeOilLlcMember
Shell Trading (US) Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  | 347,422 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_ShellTradingUSCompanyMember |  |  |
Percentage of revenue |  |  |  |  |  |  |  |  |  |  |  |  | 17.50%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_ShellTradingUSCompanyMember |  |  |
Atlas Pipeline Mid-Continent West OK LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  | $ 211,838 us-gaap_Revenues / us-gaap_MajorCustomersAxis = sd_AtlasPipelineMidContinentWestOKLlcMemberMember |  |  |
Percentage of revenue |  |  |  |  |  |  |  |  |  |  |  |  | 10.70%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = sd_AtlasPipelineMidContinentWestOKLlcMemberMember |  |  |
[1] | Total revenues and total expenses for the three-month period ended December 31, 2012 have been reduced by $796.3 million from amounts previously presented. See Note 2.
[2] | Exploration and Production and consolidated total revenues and total revenues and expenses have been reduced by $796.3 million from amounts previously presented. See Note 2.

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