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Supplemental Information on Oil and Natural Gas Producing Activities - Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development (Additional Information) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]      
Exploration $ 41,070us-gaap_CostsIncurredExplorationCosts [1] $ 82,775us-gaap_CostsIncurredExplorationCosts [1] $ 120,438us-gaap_CostsIncurredExplorationCosts [1]
Development 1,288,395us-gaap_CostsIncurredDevelopmentCosts [2] 1,131,269us-gaap_CostsIncurredDevelopmentCosts [2] 1,704,991us-gaap_CostsIncurredDevelopmentCosts [2]
Seismic Costs      
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]      
Exploration 10,800us-gaap_CostsIncurredExplorationCosts
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= sd_SeismicCostsMember		 6,700us-gaap_CostsIncurredExplorationCosts
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= sd_SeismicCostsMember		 15,300us-gaap_CostsIncurredExplorationCosts
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= sd_SeismicCostsMember
Construction Costs | Century Plant      
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]      
Development     $ 50,000us-gaap_CostsIncurredDevelopmentCosts
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= sd_ConstructionCostsMember
/ us-gaap_TypeOfArrangementAxis
= sd_CenturyPlantMember
[1] Includes seismic costs of $10.8 million, $6.7 million and $15.3 million for 2014, 2013 and 2012, respectively.
[2] Includes the Company’s share of Century Plant construction costs of $50.0 million for 2012. See Note 7.