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Fair Value Measurements - Estimated Fair Value and Carrying Value of Senior Notes (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | $ 3,194,907 us-gaap_LongTermDebt |  | $ 4,301,083 us-gaap_LongTermDebt |
9.875% Senior Notes due 2016 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 0 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member | [1] | 356,657 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member | [1]
8.0% Senior Notes due 2018 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 0 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointZeroPercentDue2018Member |  | 750,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointZeroPercentDue2018Member |
8.75% Senior Notes due 2020 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 444,736 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointSevenFivePercentDue2020Member | [2] | 444,127 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointSevenFivePercentDue2020Member | [2]
7.5% Senior Notes due 2021 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 1,178,922 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member | [3] | 1,179,328 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member | [3]
8.125% Senior Notes due 2022 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 750,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |  | 750,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member |
7.5% Senior Notes due 2023 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Carrying value | 821,249 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member | [4] | 820,971 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member | [4]
Fair Value Measurements Level 2 | 9.875% Senior Notes due 2016 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | 0 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [1] | 392,913 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesNinePointEightSevenFivePercentDue2016Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [1]
Fair Value Measurements Level 2 | 8.0% Senior Notes due 2018 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | 0 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointZeroPercentDue2018Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 790,313 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointZeroPercentDue2018Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
Fair Value Measurements Level 2 | 8.75% Senior Notes due 2020 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | 486,000 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointSevenFivePercentDue2020Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [2] | 490,500 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointSevenFivePercentDue2020Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [2]
Fair Value Measurements Level 2 | 7.5% Senior Notes due 2021 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | 1,230,813 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [3] | 1,257,250 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2021Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [3]
Fair Value Measurements Level 2 | 8.125% Senior Notes due 2022 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | 795,000 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 823,125 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesEightPointOneTwoFivePercentDue2022Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
Fair Value Measurements Level 2 | 7.5% Senior Notes due 2023 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis |  |  |  |
Fair value | $ 837,375 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] | $ 882,750 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = sd_SeniorNotesSevenPointFivePercentDue2023Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4]
[1] | Carrying value is net of $8,843 discount at December 31, 2012.
[2] | Carrying value is net of $5,264 and $5,873 discount at December 31, 2013 and 2012, respectively.
[3] | Carrying value includes a premium, applicable to notes issued in August 2012, of $3,922 and $4,328 at December 31, 2013 and 2012, respectively.
[4] | Carrying value is net of $3,751 and $4,029 discount at December 31, 2013 and 2012, respectively.

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13476-108611 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: 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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