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Variable Interest Entities - Royalty Trusts - Ownership Interest (Details)
Dec. 31, 2014
Dec. 31, 2013
Mississippian Trust I    
Variable Interest Entity [Line Items]    
Beneficial interest owned by Company 26.90%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgeMississippianTrustIMember
26.90%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgeMississippianTrustIMember
Permian Trust    
Variable Interest Entity [Line Items]    
Beneficial interest owned by Company 25.00%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgePermianTrustMember
28.50%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgePermianTrustMember
Mississippian Trust II    
Variable Interest Entity [Line Items]    
Beneficial interest owned by Company 37.60%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgeMississippianTrustIiMember
37.60%sd_VariableInterestEntityOwnershipInterestsPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_SandRidgeMississippianTrustIiMember