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Acquisitions and Divestitures - Dynamic Acquisition - Unaudited Pro Forma Results of Operations (Details) (Dynamic Acquisition, USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dynamic Acquisition
    
Business Acquisition [Line Items]    
Revenues $ 2,112,576us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [1] $ 1,932,945us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [2]
Net income 39,563us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [1] 509,644us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [2]
(Loss applicable) income available to SandRidge Energy, Inc. common stockholders $ (120,962)sd_BusinessAcquisitionProFormaNetIncomeLossAvailableToCommonStockholdersBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [1] $ 399,278sd_BusinessAcquisitionProFormaNetIncomeLossAvailableToCommonStockholdersBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [2]
(Loss) earnings per common share    
Basic (in dollars per share) $ (0.25)us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [1] $ 0.84us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [2]
Diluted (in dollars per share) $ (0.25)us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [1] $ 0.80us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= sd_DynamicAcquisitionMember		 [2]
[1] Pro forma net income, loss applicable to SandRidge Energy, Inc. common stockholders and loss per common share exclude a $122.7 million bargain purchase gain, a $100.3 million partial valuation allowance release included in income tax benefit, $10.9 million of fees incurred to secure financing for the Dynamic Acquisition included in interest expense and $13.0 million of transaction costs incurred and included in general and administrative expense in the accompanying consolidated statement of operations for the year ended December 31, 2012.
[2] Pro forma net income, income available to SandRidge Energy, Inc. common stockholders and earnings per common share include a $122.7 million bargain purchase gain, a $100.3 million partial valuation allowance release, $10.9 million of fees incurred to secure financing and $13.0 million of transaction costs.