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

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- Definition

The pro forma net income loss available to common stockholders.

+ References

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

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-Subparagraph (h)(2)-(3)

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+ References

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-Name Accounting Standards Codification

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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