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Acquisitions and Divestitures - Gulf Properties Disposal - Revenue and Expense Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Business Acquisitions And Dispositions [Line Items]
Revenues	$ 346,881us-gaap_Revenues	$ 394,107us-gaap_Revenues	$ 374,714us-gaap_Revenues	$ 443,056us-gaap_Revenues	$ 465,108us-gaap_Revenues	$ 493,603us-gaap_Revenues	$ 512,987us-gaap_Revenues	$ 511,690us-gaap_Revenues	$ 1,558,758us-gaap_Revenues		$ 1,983,388us-gaap_Revenues	$ 1,934,642us-gaap_Revenues
Expenses									968,534us-gaap_CostsAndExpenses		2,152,389us-gaap_CostsAndExpenses	1,609,446us-gaap_CostsAndExpenses
Gulf Properties
Business Acquisitions And Dispositions [Line Items]
Revenues									90,920us-gaap_Revenues / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember	[1]	627,236us-gaap_Revenues / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember	449,420us-gaap_Revenues / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember
Expenses									$ 63,674us-gaap_CostsAndExpenses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember	[1]	$ 491,991us-gaap_CostsAndExpenses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember	$ 360,209us-gaap_CostsAndExpenses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = sd_GulfPropertiesMember
[1] Includes revenues and expenses through February 25, 2014, the date of the sale.

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Total costs of sales and operating expenses for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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