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Fair Value Measurements - Narrative (Details) (Gulf Properties) | 12 Months Ended
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Dec. 31, 2014
Gulf Properties |
Fair value inputs, probability of default | 3.71%us-gaap_FairValueInputsProbabilityOfDefault / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember

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- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueInputsProbabilityOfDefault
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration