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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 $ 465,108us-gaap_Revenues $ 493,603us-gaap_Revenues $ 512,987us-gaap_Revenues $ 511,690us-gaap_Revenues $ 541,775us-gaap_Revenues [1] $ 532,798us-gaap_Revenues [1] $ 478,434us-gaap_Revenues [1] $ 381,635us-gaap_Revenues [1] $ 1,983,388us-gaap_Revenues $ 1,934,642us-gaap_Revenues [2] $ 1,415,213us-gaap_Revenues
Plains Marketing, L.P.                      
Revenue, Major Customer [Line Items]                      
Sales                 491,258us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= sd_PlainsMarketingLPMember		 426,339us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= sd_PlainsMarketingLPMember		 276,285us-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                   394,162us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= sd_EnterpriseCrudeOilLlcMember		 319,277us-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                 347,422us-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                 $ 211,838us-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.