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Variable Interest Entities - Royalty Trusts - Ownership Interest (Details) | Mar. 31, 2014 | Dec. 31, 2013 | Apr. 30, 2011 | Aug. 31, 2011 | Apr. 30, 2012
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Mississippian Trust I |  |  |  |  |  |  |  |
Variable Interest Entity |  |  |  |  |  |  |  |
Beneficial interest owned by Company(1) | 26.90%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIMember | 26.90%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIMember | 38.40%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIMember | [1] |  |  |  |
Permian Trust |  |  |  |  |  |  |  |
Variable Interest Entity |  |  |  |  |  |  |  |
Beneficial interest owned by Company(1) | 25.00%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgePermianTrustMember | 28.50%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgePermianTrustMember |  |  | 34.30%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgePermianTrustMember | [1] |  |
Mississippian Trust II |  |  |  |  |  |  |  |
Variable Interest Entity |  |  |  |  |  |  |  |
Beneficial interest owned by Company(1) | 37.60%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIiMember | 37.60%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIiMember |  |  |  |  | 39.90%sd_VariableInterestEntityOwnershipInterestsPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_SandRidgeMississippianTrustIiMember | [1]
[1] | Subsequent to the initial public offerings, the Company sold common units of the Royalty Trusts it owned in transactions exempt from registration under Rule 144 under the Securities Act. These transactions decreased the Company’s beneficial interests in the Royalty Trusts. See further discussion of the unit sales below.

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