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Incentive, Retirement and Deferred Compensation Plans - Narrative (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Performance Units |  |  |
Employee Compensation Plans [Line Items] |  |  |
Award, accrued liability | $ 700,000 sd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTotalShareBasedLiabilitiesAccrued / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | $ 1,800,000 sd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTotalShareBasedLiabilitiesAccrued / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Stock-based compensation | (1,000,000)us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | 1,600,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Stock based compensation, capitalized | (50,000)us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | 200,000 us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Total fair value of awards vested during the period | 300,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | 100,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Cash payments for performance units during the reporting period | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Unrecognized compensation cost related to unvested awards | 300,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |  |
Unrecognized compensation cost related to unvested awards, weighted average period of recognition | 1 year 7 months 0 days |  |
Performance Units | Minimum |  |  |
Employee Compensation Plans [Line Items] |  |  |
Expected cash settlement per unit if performance exceeds minimum thresholds | $ 50 sd_IncentivePlanPayoutExpectedTargetValuesPerPerformanceUnit / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Performance Units | Maximum |  |  |
Employee Compensation Plans [Line Items] |  |  |
Expected cash settlement per unit if performance exceeds minimum thresholds | $ 200 sd_IncentivePlanPayoutExpectedTargetValuesPerPerformanceUnit / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Final Payments Under Existing Cash Bonus Program |  |  |
Employee Compensation Plans [Line Items] |  |  |
Payments to employees |  | 10,900,000 us-gaap_PaymentsToEmployees / us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis = sd_FinalPaymentsUnderExistingCashBonusProgramMember |
Management Annual Incentive Plan | Minimum |  |  |
Employee Compensation Plans [Line Items] |  |  |
Incentive plans, payout percentages of target values | 0.00%sd_IncentivePlanPayoutPercentagesOfTargetValues / us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis = sd_ManagementAnnualIncentivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Management Annual Incentive Plan | Maximum |  |  |
Employee Compensation Plans [Line Items] |  |  |
Incentive plans, payout percentages of target values | 200.00%sd_IncentivePlanPayoutPercentagesOfTargetValues / us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis = sd_ManagementAnnualIncentivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Annual Incentive Plan |  |  |
Employee Compensation Plans [Line Items] |  |  |
Accrued bonuses | 21,100,000 us-gaap_AccruedBonusesCurrentAndNoncurrent / us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis = sd_AnnualIncentivePlanMember |  |
Deferred Compensation Plans |  |  |
Employee Compensation Plans [Line Items] |  |  |
Retirement plan, employer matching contribution, percent of match | 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Retirement plan, cost recognized | 8,700,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 11,000,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 11,400,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Deferred compensation plan, compensation expense | $ 2,000,000 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | $ 2,700,000 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | $ 3,500,000 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Deferred Compensation Plans | Maximum |  |  |
Employee Compensation Plans [Line Items] |  |  |
Retirement plan, employer matching contribution, percent of employees' gross pay | 10.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 15.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 15.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Deferred compensation plan, employer match percentage | 10.00%us-gaap_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 15.00%us-gaap_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 15.00%us-gaap_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_RangeAxis = us-gaap_MaximumMember

X
- Details
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- Definition Incentive Plan Payout Expected Target Cash Settlement Values Per Performance Unit + References No definition available. + Details
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Namespace Prefix: | sd_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Incentive plan payout percentages of target values based on performance above a minimum threshold + References No definition available. + Details
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Namespace Prefix: | sd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of liabilities accrued for share-based compensation as of the reporting date. + References No definition available. + Details
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Namespace Prefix: | sd_
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Balance Type: | credit
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. + 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 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Commitment made to pay deferred cash remuneration expressed as a percentage of the individual's base salary. + References No definition available. + Details
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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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- Definition Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Payments of cash to employees, including wages and salaries, during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition Amount of cash paid related to share-based compensation liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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