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Related Party Transactions - Narrative (Details) (USD $)
Share data in Millions, unless otherwise specified
12 Months Ended 3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Sep. 30, 2013
Related Party Transaction [Line Items]        
Sales to related parties   $ 1,600,000us-gaap_RevenueFromRelatedParties $ 12,800,000us-gaap_RevenueFromRelatedParties  
Employee termination benefits 8,874,000us-gaap_PostemploymentBenefitsPeriodExpense 122,505,000us-gaap_PostemploymentBenefitsPeriodExpense 0us-gaap_PostemploymentBenefitsPeriodExpense  
Former Chairman and CEO Severance        
Related Party Transaction [Line Items]        
Employee termination benefits       57,900,000us-gaap_PostemploymentBenefitsPeriodExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_FormerChairmanandCeoSeveranceMember
Severance, compensation cost of accelerated shares       36,800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_FormerChairmanandCeoSeveranceMember
Severance, number of accelerated shares       6.3sd_ShareBasedCompensationArranagementByShareBasedPaymentAwardAcceleratedCompensationShares
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_FormerChairmanandCeoSeveranceMember
Severance liability 3,100,000us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_FormerChairmanandCeoSeveranceMember
     
Annual Sponsorship Amount        
Related Party Transaction [Line Items]        
Sponsorship fees   3,300,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_AnnualSponsorshipAmountMember
   
Annual Lease Obligation to Related Party        
Related Party Transaction [Line Items]        
Related party transaction amounts 500,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_AnnualLeaseObligationToRelatedPartyMember
     
Leasehold Improvements under Lease with Related Party        
Related Party Transaction [Line Items]        
Related party transaction amounts 3,300,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sd_LeaseholdImprovementsUnderLeaseWithRelatedPartyMember
     
Gulf Properties | Employee Severance        
Related Party Transaction [Line Items]        
Employee termination benefits 8,900,000us-gaap_PostemploymentBenefitsPeriodExpense
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sd_GulfPropertiesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_EmployeeSeveranceMember
     
Permian Properties | Employee Severance        
Related Party Transaction [Line Items]        
Employee termination benefits   $ 23,200,000us-gaap_PostemploymentBenefitsPeriodExpense
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sd_PermianPropertiesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_EmployeeSeveranceMember