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Variable Interest Entities - Royalty Trusts - Assets and Liabilities Included in Consolidated Balance Sheets (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Variable Interest Entity [Line Items]        
Cash and cash equivalents $ 181,253,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 814,663,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 309,766,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 207,681,000us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable 330,077,000us-gaap_AccountsReceivableNetCurrent 349,218,000us-gaap_AccountsReceivableNetCurrent    
Derivative contracts 291,414,000us-gaap_DerivativeAssetsCurrent 12,779,000us-gaap_DerivativeAssetsCurrent    
Total current assets 831,918,000us-gaap_AssetsCurrent 1,241,823,000us-gaap_AssetsCurrent    
Investment in royalty interests 11,997,743,000us-gaap_OilAndGasPropertyFullCostMethodGross 11,504,422,000us-gaap_OilAndGasPropertyFullCostMethodGross 13,128,784,000us-gaap_OilAndGasPropertyFullCostMethodGross  
Less: accumulated depletion (6,359,149,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities (5,762,969,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities (5,231,182,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities  
Investment in royalty interests, net 5,638,594,000us-gaap_OilAndGasPropertyFullCostMethodNet 5,741,453,000us-gaap_OilAndGasPropertyFullCostMethodNet 7,897,602,000us-gaap_OilAndGasPropertyFullCostMethodNet  
Derivative contracts 47,003,000us-gaap_DerivativeAssetsNoncurrent 14,126,000us-gaap_DerivativeAssetsNoncurrent    
Accounts payable and accrued expenses 683,392,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent 812,488,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent    
Royalty Trusts        
Variable Interest Entity [Line Items]        
Cash and cash equivalents 9,387,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [1] 7,912,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [1]    
Accounts receivable 17,660,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 22,540,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Derivative contracts 6,589,000us-gaap_DerivativeAssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 4,983,000us-gaap_DerivativeAssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Total current assets 33,636,000us-gaap_AssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 35,435,000us-gaap_AssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Investment in royalty interests 1,325,942,000us-gaap_OilAndGasPropertyFullCostMethodGross
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [2] 1,325,942,000us-gaap_OilAndGasPropertyFullCostMethodGross
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 [2]    
Less: accumulated depletion (284,094,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 (186,095,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Investment in royalty interests, net 1,041,848,000us-gaap_OilAndGasPropertyFullCostMethodNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 1,139,847,000us-gaap_OilAndGasPropertyFullCostMethodNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Derivative contracts 0us-gaap_DerivativeAssetsNoncurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 1,476,000us-gaap_DerivativeAssetsNoncurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Total assets 1,075,484,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 1,176,758,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Accounts payable and accrued expenses 2,852,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 3,393,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
Total liabilities $ 2,852,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		 $ 3,393,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_RoyaltyTrustMember		    
[1] Includes $3.0 million held by the trustee at December 31, 2014 and 2013 as reserves for future general and administrative expenses.
[2] Investment in royalty interests is included in oil and natural gas properties in the accompanying consolidated balance sheets.