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Asset Retirement Obligations - Reconciliation of Beginning and Ending Aggregate Carrying Amounts of Asset Retirement Obligations (Additional Information) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 1 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 28, 2014
Reconciliation Of Changes In Asset Retirement Obligations [Line Items] |  |  |  |  |
Asset retirement obligation, liabilities settled | $ (377,927)us-gaap_AssetRetirementObligationLiabilitiesSettled | [1] | $ (113,071)us-gaap_AssetRetirementObligationLiabilitiesSettled | $ (72,200)us-gaap_AssetRetirementObligationLiabilitiesSettled |
Gulf of Mexico Properties |  |  |  |  |
Reconciliation Of Changes In Asset Retirement Obligations [Line Items] |  |  |  |  |
Asset retirement obligation, liabilities settled |  |  |  |  | $ (366,000)us-gaap_AssetRetirementObligationLiabilitiesSettled / us-gaap_StatementGeographicalAxis = sd_GulfOfMexicoPropertiesMember
[1] | Liability settled or disposed in the current period includes $366.0 million associated with the Gulf Properties sold in February 2014, as discussed in Note 3.

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- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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