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Acquisitions and Divestitures - Gulf of Mexico Property Acquisitions - Unaudited Pro Forma Results of Operations (Details) (Gulf of Mexico Properties, USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Gulf of Mexico Properties
  
Business Acquisition [Line Items]  
Revenues $ 1,963,058us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= sd_GulfOfMexicoPropertiesMember
Net income 247,035us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= sd_GulfOfMexicoPropertiesMember
Income available to SandRidge Energy, Inc. common stockholders $ 86,510sd_BusinessAcquisitionProFormaNetIncomeLossAvailableToCommonStockholdersBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_GulfOfMexicoPropertiesMember
Earnings per common share  
Basic (in dollars per share) $ 0.19us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_GulfOfMexicoPropertiesMember
Diluted (in dollars per share) $ 0.19us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= sd_GulfOfMexicoPropertiesMember