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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
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Dec. 31, 2012 | Dec. 31, 2011
Gulf of Mexico Properties |  |
Business Acquisition [Line Items] |  |
Revenues | $ 1,963,058 us-gaap_BusinessAcquisitionsProFormaRevenue / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember | $ 1,502,325 us-gaap_BusinessAcquisitionsProFormaRevenue / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember
Net income | 247,035 us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember | 191,073 us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember
Income available to SandRidge Energy, Inc. common stockholders | $ 86,510 sd_BusinessAcquisitionProFormaNetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember | $ 81,167 sd_BusinessAcquisitionProFormaNetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember
Earnings per common share |  |
Basic (in dollars per share) | $ 0.19 us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember | $ 0.20 us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember
Diluted (in dollars per share) | $ 0.19 us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember | $ 0.20 us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted / us-gaap_BusinessAcquisitionAxis = sd_GulfOfMexicoPropertiesMember

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