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Variable Interest Entities - Royalty Trusts - Assets and Liabilities Included in Unaudited Condensed Consolidated Balance Sheets (Details) (USD $) | Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Variable Interest Entity |  |  |  |  |  |
Cash and cash equivalents | $ 1,179,644,000 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 814,663,000 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 1,308,733,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 309,766,000 us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable, net | 293,765,000 us-gaap_AccountsReceivableNetCurrent |  | 349,218,000 us-gaap_AccountsReceivableNetCurrent |  |  |
Derivative contracts | 9,002,000 us-gaap_DerivativeAssetsCurrent |  | 12,779,000 us-gaap_DerivativeAssetsCurrent |  |  |
Total current assets | 1,525,945,000 us-gaap_AssetsCurrent |  | 1,241,823,000 us-gaap_AssetsCurrent |  |  |
Investment in royalty interests(2) | 10,735,993,000 us-gaap_OilAndGasPropertyFullCostMethodGross |  | 11,504,422,000 us-gaap_OilAndGasPropertyFullCostMethodGross |  |  |
Less: accumulated depletion and impairment(3) | (6,043,109,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities |  | (5,762,969,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities |  |  |
Net oil and natural gas properties capitalized costs | 4,692,884,000 us-gaap_OilAndGasPropertyFullCostMethodNet |  | 5,741,453,000 us-gaap_OilAndGasPropertyFullCostMethodNet |  |  |
Derivative contracts | 18,048,000 us-gaap_DerivativeAssetsNoncurrent |  | 14,126,000 us-gaap_DerivativeAssetsNoncurrent |  |  |
Accounts payable and accrued expenses | 590,085,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent | [1] | 812,488,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent |  |  |
Royalty Trusts |  |  |  |  |  |
Variable Interest Entity |  |  |  |  |  |
Cash and cash equivalents | 7,241,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [2] | 7,912,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [2] |  |
Accounts receivable, net | 22,453,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 22,540,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Derivative contracts | 3,300,000 us-gaap_DerivativeAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 4,983,000 us-gaap_DerivativeAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total current assets | 32,994,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 35,435,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Investment in royalty interests(2) | 1,325,942,000 us-gaap_OilAndGasPropertyFullCostMethodGross / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [3] | 1,325,942,000 us-gaap_OilAndGasPropertyFullCostMethodGross / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [3] |  |
Less: accumulated depletion and impairment(3) | (243,971,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [4] | (186,095,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [4] |  |
Net oil and natural gas properties capitalized costs | 1,081,971,000 us-gaap_OilAndGasPropertyFullCostMethodNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,139,847,000 us-gaap_OilAndGasPropertyFullCostMethodNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Derivative contracts | 0 us-gaap_DerivativeAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,476,000 us-gaap_DerivativeAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total assets | 1,114,965,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,176,758,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Accounts payable and accrued expenses | 2,157,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 3,393,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total liabilities | $ 2,157,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | $ 3,393,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
[1] | Guarantor and Consolidated accounts payable and accrued expenses have been restated to reflect accrual of the CO2 delivery shortfall penalty. See Note 2.
[2] | Includes $3.0 million held by the trustee at March 31, 2014 and December 31, 2013 as reserves for future general and administrative expenses.
[3] | Investment in royalty interests is included in oil and natural gas properties in the accompanying unaudited condensed consolidated balance sheets.
[4] | Accumulated depletion and impairment at March 31, 2014 includes full cost ceiling limitation impairment allocated to the Royalty Trusts of $42.3 million. There was no full cost ceiling limitation impairment allocated to the Royalty Trusts as of December 31, 2013.

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