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Variable Interest Entities - Grey Ranch, L.P. - Assets and Liabilities Included in Consolidated Balance Sheets (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Variable Interest Entity [Line Items]        
Cash and cash equivalents $ 814,663,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 309,766,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 207,681,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 5,863,000us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable, net 349,218,000us-gaap_AccountsReceivableNetCurrent 445,506,000us-gaap_AccountsReceivableNetCurrent    
Prepaid expenses 39,253,000us-gaap_PrepaidExpenseCurrent 31,319,000us-gaap_PrepaidExpenseCurrent    
Other current assets 25,910,000us-gaap_OtherAssetsCurrent 19,043,000us-gaap_OtherAssetsCurrent    
Total current assets 1,241,823,000us-gaap_AssetsCurrent 1,142,885,000us-gaap_AssetsCurrent    
Other property, plant and equipment, net 566,222,000us-gaap_PropertyPlantAndEquipmentNet 582,375,000us-gaap_PropertyPlantAndEquipmentNet    
Accounts payable and accrued expenses 812,488,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent 782,090,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent [1]    
Grey Ranch Plant, L.P        
Variable Interest Entity [Line Items]        
Cash and cash equivalents 132,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 1,080,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Accounts receivable, net 16,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 20,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Prepaid expenses 32,000us-gaap_PrepaidExpenseCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 64,000us-gaap_PrepaidExpenseCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Other current assets 109,000us-gaap_OtherAssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 109,000us-gaap_OtherAssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Total current assets 289,000us-gaap_AssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 1,273,000us-gaap_AssetsCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Other property, plant and equipment, net 1,163,000us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 1,246,000us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Total assets 1,452,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 2,519,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Accounts payable and accrued expenses 129,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 274,000us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
Total liabilities $ 129,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		 $ 274,000us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= sd_GreyRanchLPMember		    
[1] Guarantor and consolidated accounts payable and accrued expenses include $15.5 million previously classified as other current liabilities. See Note 2.