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Long-Term Debt - Narrative (Details) (USD $) | 12 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 23, 2015 | Aug. 31, 2012 | Apr. 30, 2012 | Sep. 30, 2012 | Feb. 20, 2015 | Oct. 31, 2014 | Oct. 30, 2014 | Mar. 31, 2013
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior credit facility outstanding amount | $ 0 us-gaap_LineOfCredit | $ 0 us-gaap_LineOfCredit |  |  |  |  |  |  |  |  |
Premium paid to purchase notes and unamortized debt issuance cost in relation to the notes | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | (82,005,000)us-gaap_GainsLossesOnExtinguishmentOfDebt | (3,075,000)us-gaap_GainsLossesOnExtinguishmentOfDebt |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior credit facility outstanding amount |  |  |  |  |  |  |  | 100,000,000 us-gaap_LineOfCredit / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Additional aggregate principal indebtedness permitted (less than) |  |  |  | 500,000,000 sd_LineofCreditFacilityMaximumAdditionalIndebtednessPermittedUndertheAmendedCreditAgreement / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Reduction in borrowing base for every $1 of junior lien debt incurred |  |  |  | 0.25 sd_LineofCreditFacilityReductiontoMaximumBorrowingCapacityforEachDollarofAdditionalIndebtednessIncurred / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Senior credit facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net debt to EBITDA, ratio maximum | 4.5 sd_DebtToEBITDARatioMaximum / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |  |
Current assets to current liabilities, ratio minimum | 1.0 sd_CurrentRatioMinimum / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |  |
Long-term debt, debt to EBITDA ratio, total funded debt determination | 10,000,000.0 sd_AmountCashMustBeExceededByForTotalFundedDebtReduction / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |  |
Debt maturity date | October 2019 |  |  |  |  |  |  |  |  |  |
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 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum amount outstanding during period | 0 us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember | 0 us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |
Line of credit facility maximum borrowings capacity |  |  |  |  |  |  |  |  | 1,200,000,000.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember | 775,000,000.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
Line of credit facility, amended borrowing capacity |  |  |  |  |  |  |  |  | 900,000,000.00 sd_LineOfCreditFacilityAmendedMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |
Line of credit facility, letters of credit outstanding | 11,600,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage | 0.375%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage | 0.50%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Federal Funds |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_FederalFundsEffectiveSwapRateMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | One-Month Eurodollar Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = sd_OneMonthEurodollarRateMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Base Rate | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Base Rate | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |  |  |  |  |  |  |  |  |  |
Senior credit facility | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Covenant, Ratio of secured debt to EBITDA, maximum |  |  |  | 2.25 sd_DebtInstrumentRestrictiveCovenantsRatioofSecuredDebtToEBITDAMeasuredQuarterly / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Mar 2015 |  |  |  | 2.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodOne / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Jun 2015 |  |  |  | 2.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodTwo / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Sep 2015 |  |  |  | 1.75 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodThree / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Dec 2015 |  |  |  | 1.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodFour / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Mar 2016 |  |  |  | 1.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodFive / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Jun 2016 |  |  |  | 1.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodSix / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Sep 2016 |  |  |  | 1.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodSeven / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of EBITDA to interest expense at Dec 2016 |  |  |  | 2.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfEBITDAToInterestExpensePeriodEightAndThereafter / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Jun 2016 |  |  |  | 6.25 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodOne / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Sep 2016 |  |  |  | 6.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodTwo / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Dec 2016 |  |  |  | 6.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodThree / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Mar 2017 |  |  |  | 5.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodFour / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Jun 2017 |  |  |  | 5.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodFive / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Sep 2017 |  |  |  | 5.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodSix / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Dec 2017 |  |  |  | 5.00 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodSeven / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Covenant, Ratio of total net debt to EBITDA at Mar 2018 |  |  |  | 4.50 sd_DebtInstrumentRestrictiveCovenantsRatioOfTotalNetDebtToEBITDAPeriodEight / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Line of credit facility maximum borrowings capacity |  |  |  | 900,000,000.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Line of credit facility, letters of credit outstanding |  |  |  |  |  |  |  | 11,300,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Senior credit facility | Subsequent Event | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate |  |  |  | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |  |  |
Senior credit facility | Subsequent Event | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate |  |  |  | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |  |  |
Senior credit facility | Subsequent Event | Base Rate | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate |  |  |  | 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |  |  |  |  |  |  |
Senior credit facility | Subsequent Event | Base Rate | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate |  |  |  | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt maturities, repayments of principal in the next twelve months | 0 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |  |  |
Long-term debt maturities, in years two and three | 0 us-gaap_LongTermDebtMaturingInYearsTwoAndThree / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |  |  |
Long-term debt maturities, in years four and five | 0 us-gaap_LongTermDebtMaturingInYearsFourAndFive / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |  |  |
Senior Notes Outstanding |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt issuance cost, cumulative | 70,200,000 sd_DebtIssuanceCostCumulative / us-gaap_DebtInstrumentAxis = sd_SeniorNotesOutstandingMember |  |  |  |  |  |  |  |  |  |
9.875% Senior Notes due 2016 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt tender offer, aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 365,500,000 sd_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 |  |  |  |  |  |  |  |  |  |  | 1,061.34 sd_DebtInstrumentRedemptionPricePerPrincipalAmount / us-gaap_DebtInstrumentAxis = sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member
8.0% Senior Notes due 2018 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt tender offer, aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 750,000,000 sd_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 |  |  |  |  |  |  |  |  |  |  | 1,052.77 sd_DebtInstrumentRedemptionPricePerPrincipalAmount / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointZeroPercentDue2018Member
9.875% Senior Notes due 2016 and 8.0% Senior Notes due 2018 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premium paid to purchase notes and unamortized debt issuance cost in relation to the notes |  | (82,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DebtInstrumentAxis = sd_NinePointEightSevenFivePercentSeniorNotesAndEightPointZeroPercentSeniorNotesMember |  |  |  |  |  |  |  |  |
2012 Senior Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt issuance cost, cumulative |  |  | 41,000,000 sd_DebtIssuanceCostCumulative / us-gaap_DebtInstrumentAxis = sd_A2012SeniorNotesMember |  |  |  |  |  |  |  |
Proceeds from debt, net of issuance costs |  |  |  |  | 1,100,000,000 us-gaap_ProceedsFromDebtNetOfIssuanceCosts / us-gaap_DebtInstrumentAxis = sd_A2012SeniorNotesMember |  |  |  |  |  |
8.125% Senior Notes due 2022 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt maturity date | 2022 | 2022 |  |  |  |  |  |  |  |  |
Long-term debt, fixed interest rate | 8.125%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member | 8.125%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |  |  |  | 8.125%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | 750,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |  |  |  |  |
Proceeds from debt, net of issuance costs |  |  |  |  |  | 730,100,000 us-gaap_ProceedsFromDebtNetOfIssuanceCosts / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |  |  |  |  |
7.5% Senior Notes due 2023 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt maturity date | 2023 | 2023 |  |  |  |  |  |  |  |  |
Long-term debt, fixed interest rate | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member |  |  | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | 825,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member |  |  |  |  |  |
Selling price of Senior Notes issued |  |  |  |  | 99.50%sd_SellingPriceOfSeniorNotesIssued / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member |  |  |  |  |  |
7.5% Senior Notes due 2021 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt maturity date | 2021 | 2021 |  |  |  |  |  |  |  |  |
Long-term debt, fixed interest rate | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member |  |  | 7.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | 275,000,000.0 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member |  |  |  |  |  |
Selling price of Senior Notes issued |  |  |  |  | 101.625%sd_SellingPriceOfSeniorNotesIssued / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member |  |  |  |  |  |
Senior Floating Rate Notes due 2014 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, basis spread on variable rate |  |  |  |  |  |  | 3.625%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = sd_SeniorFloatingRateNotesDue2014Member |  |  |  |
Premium paid to purchase notes and unamortized debt issuance cost in relation to the notes |  |  | (3,100,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DebtInstrumentAxis = sd_SeniorFloatingRateNotesDue2014Member |  |  |  |  |  |  |  |
Percentage of aggregate senior notes outstanding principal amount purchased |  |  |  |  |  |  | 100.00%sd_Debtinstrumentrepurchasedpercentage / us-gaap_DebtInstrumentAxis = sd_SeniorFloatingRateNotesDue2014Member |  |  |  |
Debt instrument, repurchased face amount |  |  |  |  |  |  | $ 350,000,000.0 us-gaap_DebtInstrumentRepurchasedFaceAmount / us-gaap_DebtInstrumentAxis = sd_SeniorFloatingRateNotesDue2014Member |  |  |  |

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- Definition Amount by which the cash balance must be exceeded to reduce total funded debt in the debt to EBITDA ratio calculation when no amounts have been drawn under the credit facility. + References No definition available. + Details
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- Definition Debt issuance expense that was capitalized and is being amortized over the life of the respective debt. + References No definition available. + Details
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- Definition Debt Tender Offer Aggregate Principal Amount + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Face (par) amount of the original debt instrument that was repurchased. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Maximum amount borrowed under the credit facility at any time during the period. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth and fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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