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Property, Plant and Equipment - Capitalized Costs of Unproved Properties Excluded from Amortization (Parenthetical) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]      
Pipe inventory costs, cumulative $ 45.6sd_PipeInventoryCostsCumulative    
Year Cost Incurred 2013      
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]      
Pipe inventory costs, period costs 42.6sd_PipeInventoryCostsPeriodCosts
/ us-gaap_RangeAxis
= sd_YearCostIncurred2013Member		    
Year Cost Incurred 2012      
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]      
Pipe inventory costs, period costs   2.8sd_PipeInventoryCostsPeriodCosts
/ us-gaap_RangeAxis
= sd_YearCostIncurred2012Member		  
Year Cost Incurred 2010 and Prior      
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]      
Pipe inventory costs, cumulative     $ 0.2sd_PipeInventoryCostsCumulative
/ us-gaap_RangeAxis
= sd_YearCostIncurred2010andPriorMember