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Summary of Significant Accounting Policies - Narrative (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Significant Accounting Policies [Line Items] |  |  |
Capitalized costs | $ 1,526,484,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities | $ 1,335,416,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities | $ 3,964,170,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
Maximum reserves sold from cost center not expected to result in significant alteration (less than) | 25.00%sd_PercentageOfReservesSoldWithinCostCenterNotExpectedToResultInSignificantAlteration |  |
Natural gas balancing liability | 1,400,000 us-gaap_GasImbalanceAssetLiability | 2,600,000 us-gaap_GasImbalanceAssetLiability |
Advertising expense | 1,300,000 us-gaap_AdvertisingExpense | 5,100,000 us-gaap_AdvertisingExpense | 11,800,000 us-gaap_AdvertisingExpense
Internal Costs |  |  |
Significant Accounting Policies [Line Items] |  |  |
Capitalized costs | 55,400,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_InternalCostsMember | 74,700,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_InternalCostsMember | 61,300,000 us-gaap_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_InternalCostsMember
Buildings | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 10 years |  |
Buildings | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 39 years |  |
Equipment | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 3 years |  |
Equipment | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 30 years |  |
Oil And Gas Unproved Properties |  |  |
Significant Accounting Policies [Line Items] |  |  |
Interest capitalized during period | 14,700,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_OilAndGasUnprovedPropertiesMember | 11,700,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_OilAndGasUnprovedPropertiesMember | 10,100,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_OilAndGasUnprovedPropertiesMember
Midstream And Corporate Assets |  |  |
Significant Accounting Policies [Line Items] |  |  |
Interest capitalized during period | $ 5,000,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_MidstreamAndCorporateAssetsMember | $ 4,900,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_MidstreamAndCorporateAssetsMember | $ 4,700,000 us-gaap_InterestCostsCapitalized / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sd_MidstreamAndCorporateAssetsMember

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- Definition The maximum percentage of reserves from a cost center that if sold would not ordinarily be expected to result in a significant alteration. + References No definition available. + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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- Definition Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense. + References No definition available. + Details
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- Definition The value of gas balancing asset or liability as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27015464&loc=d3e512571-122862 + Details
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- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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