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Variable Interest Entities - Royalty Trusts - Distributions (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Variable Interest Entity    
Distributions to third-party unitholders $ 43,716us-gaap_PaymentsToMinorityShareholders $ 53,118us-gaap_PaymentsToMinorityShareholders
Royalty Trusts    
Variable Interest Entity    
Total distributions 50,203sd_RoyaltyTrustDistributionsToUnitholders
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [1] 68,313sd_RoyaltyTrustDistributionsToUnitholders
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [2]
Distributions to third-party unitholders $ 43,716us-gaap_PaymentsToMinorityShareholders
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [1] $ 53,118us-gaap_PaymentsToMinorityShareholders
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [2]
[1] Subordination thresholds were not met for the Permian Trust and Mississippian Trust II’s distributions, resulting in reduced distributions to the Company on its subordinated units for these periods.
[2] Subordination thresholds were not met for the Mississippian Trust I’s and Mississippian Trust II’s distributions, resulting in reduced distributions to the Company on its subordinated units for these periods.