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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	3 Months Ended
	Mar. 31, 2012
Gulf of Mexico Properties
Business Acquisition [Line Items]
Revenues	$ 396,252
Net loss	(215,020)
Loss applicable to SandRidge Energy, Inc. common stockholders	$ (230,855)
Loss per common share
Basic (in dollars per share)	$ (0.58)
Diluted (in dollars per share)	$ (0.58)

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