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Long-Term Debt - Additional Information (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Apr. 30, 2014
Debt Instrument      
Loss on extinguishment of debt $ 0us-gaap_GainsLossesOnExtinguishmentOfDebt $ 82,005,000us-gaap_GainsLossesOnExtinguishmentOfDebt  
Senior credit facility      
Debt Instrument      
Long-term debt, debt to EBITDA ratio, total funded debt determination 10,000,000sd_AmountCashMustBeExceededByForTotalFundedDebtReduction
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= us-gaap_LineOfCreditMember
   
Debt maturity date March 2017    
Line of credit facility, financial covenants compliance As of and during the three month period ended March 31, 2014, the Company was in compliance with all applicable financial covenants under the senior credit facility.    
Line of credit facility, guarantee The obligations under the senior credit facility are guaranteed by certain Company subsidiaries and are secured by first priority liens on all shares of capital stock of certain of the Company’s material present and future subsidiaries; certain intercompany debt of the Company; and substantially all of the Company’s assets, including proved oil and natural gas reserves representing at least 80.0% of the discounted present value (as defined in the senior credit facility) of proved oil and natural gas reserves considered by the lenders in determining the borrowing base for the senior credit facility.    
Line of credit facility, interest rate determination reference (a) LIBOR plus an applicable margin between 1.75% and 2.75% per annum or (b) the “base rate,” which is the highest of (i) the federal funds rate plus 0.5%, (ii) the prime rate published by Bank of America or (iii) the Eurodollar rate (as defined in the senior credit facility) plus 1.00% per annum, plus, in each case under scenario (b), an applicable margin between 0.75% and 1.75% per annum. Interest is payable quarterly for base rate loans and at the applicable maturity date for LIBOR loans, except that if the interest period for a LIBOR loan is six months, interest is paid at the end of each three-month period.    
Line of credit facility, minimum collateral amount of proved oil and gas reserves representing the discounted present value of reserves used in borrowing base determination 80.00%sd_AmountOfProvedReservesPledgedAsCollateralPercentage
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Line of credit facility, unused capacity, commitment fee percentage 0.50%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
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= us-gaap_LineOfCreditMember
   
Line of credit facility maximum borrowings capacity 775,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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= us-gaap_LineOfCreditMember
   
Line of credit facility, amount outstanding 0us-gaap_LineOfCreditFacilityAmountOutstanding
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= us-gaap_LineOfCreditMember
   
Line of credity facility, letters of credit outstanding 29,300,000us-gaap_LettersOfCreditOutstandingAmount
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= us-gaap_LineOfCreditMember
   
Senior credit facility | Minimum      
Debt Instrument      
Current assets to current liabilities, ratio minimum 1.0sd_CurrentRatio
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= us-gaap_MinimumMember
   
Senior credit facility | Maximum      
Debt Instrument      
Long-term debt, debt to EBITDA, ratio maximum 4.5sd_DebtToEbitdaRatioMaximum
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= us-gaap_LineOfCreditMember
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= us-gaap_MaximumMember
   
Senior credit facility | Addition to LIBOR per annum | LIBOR | Minimum      
Debt Instrument      
Line of credit facility, basis spread on variable rate 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= sd_AdditionToLiborPerAnnumMember
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= us-gaap_LineOfCreditMember
/ us-gaap_LineOfCreditFacilityAxis
= sd_LIBORMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Senior credit facility | Addition to LIBOR per annum | LIBOR | Maximum      
Debt Instrument      
Line of credit facility, basis spread on variable rate 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= sd_AdditionToLiborPerAnnumMember
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= us-gaap_LineOfCreditMember
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= sd_LIBORMember
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= us-gaap_MaximumMember
   
Senior credit facility | Addition to federal funds rate      
Debt Instrument      
Line of credit facility, basis spread on variable rate 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= sd_AdditionToFederalFundsRateMember
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= us-gaap_LineOfCreditMember
   
Senior credit facility | Addition to Eurodollar rate per annum | Euro Dollar Rate      
Debt Instrument      
Line of credit facility, basis spread on variable rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= sd_AdditionToEurodollarRatePerAnnumMember
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= us-gaap_LineOfCreditMember
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= sd_EuroDollarRateMember
   
Senior credit facility | Applicable margin to base rate per annum | Minimum      
Debt Instrument      
Line of credit facility, basis spread on variable rate 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Senior credit facility | Applicable margin to base rate per annum | Maximum      
Debt Instrument      
Line of credit facility, basis spread on variable rate 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= sd_ApplicableMarginToBaseRatePerAnnumMember
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Senior Notes Outstanding      
Debt Instrument      
Debt issuance cost 70,200,000sd_DebtIssuanceCostCumulative
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesOutstandingMember
   
9.875% Senior Notes due 2016      
Debt Instrument      
Debt tender offer, aggregate principal amount tendered   365,500,000sd_DebtTenderOfferAggregatePrincipalAmount
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member
 
Long-term debt, fixed interest rate   9.875%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member
 
Debt instrument redemption price per principal amount   1,061.34sd_DebtInstrumentRedemptionPricePerPrincipalAmount
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member
 
8.0% Senior Notes due 2018      
Debt Instrument      
Debt tender offer, aggregate principal amount tendered   750,000,000sd_DebtTenderOfferAggregatePrincipalAmount
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesEightPointZeroPercentDue2018Member
 
Long-term debt, fixed interest rate   8.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesEightPointZeroPercentDue2018Member
 
Debt instrument redemption price per principal amount   1,052.77sd_DebtInstrumentRedemptionPricePerPrincipalAmount
/ us-gaap_DebtInstrumentAxis
= sd_SeniorNotesEightPointZeroPercentDue2018Member
 
9.875% Senior Notes and 8.0% Senior Notes      
Debt Instrument      
Loss on extinguishment of debt   82,000,000us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_DebtInstrumentAxis
= sd_NinePointEightSevenFivePercentSeniorNotesAndEightPointZeroPercentSeniorNotesMember
 
Senior Notes      
Debt Instrument      
Debt instrument, restrictive covenants Each of the indentures governing the Company’s Senior Fixed Rate Notes contains covenants that restrict the Company’s ability to take a variety of actions, including limitations on the incurrence of indebtedness, payment of dividends, investments, asset sales, certain asset purchases, transactions with related parties and consolidations or mergers.    
Debt instrument, covenant compliance As of and during the three month period ended March 31, 2014, the Company was in compliance with all of the covenants contained in the indentures governing its senior notes.    
Subsequent Event | Senior credit facility      
Debt Instrument      
Line of credit facility maximum borrowings capacity     $ 775,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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