XML 120 R122.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Income Taxes - Additional Information (Details) (USD $) | 12 Months Ended |  |  | 12 Months Ended | 3 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Jul. 16, 2010 | Dec. 31, 2008 | Dec. 31, 2012 Dynamic Acquisition | Jun. 30, 2011 Arena Acquisition | Jul. 16, 2010 Arena Acquisition | Dec. 31, 2012 Minimum | Dec. 31, 2012 Maximum
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |  |
Amount of partial valuation allowance released | $ 100,288,000 | $ 5,290,000 | $ 447,500,000 |  |  | $ 100,288,000 | $ 7,000,000 |  |  |
Alternative minimum tax credits, not subject to expiration | 9,200,000 |  |  |  |  |  |  |  |  |
Federal net operating loss carryovers, subject to expiration | 2,300,000,000 |  |  |  |  |  |  |  |  |
Federal net operating loss carryovers, beginning expiration year | 2023 |  |  |  |  |  |  |  |  |
Federal net operating loss carryovers, ending expiration year | 2032 |  |  |  |  |  |  |  |  |
Unrecognized excess tax benefits associated with the vesting of restricted stock awards | 16,700,000 |  |  |  |  |  |  |  |  |
Federal net operating loss carryforwards to the IRC Section 382 limitation |  |  |  | 627,800,000 | 298,400,000 |  |  | 119,900,000 |  |
Unrecognized tax benefits | 1,300,000 | 1,800,000 |  |  |  |  |  |  |  |
Unrecognized tax benefits that would affect the effective tax rate if recognized | 900,000 |  |  |  |  |  |  |  |  |
Unrecognized tax benefits, accrued gross interest | 30,000 | 110,000 | 70,000 |  |  |  |  |  |  |
Unrecognized tax benefits, accrued liability | 210,000 | 180,000 |  |  |  |  |  |  |  |
Beginning tax year, years open for federal examination | 2009 |  |  |  |  |  |  |  |  |
Beginning tax year, years open due to federal net operating loss carryforwards | 2003 |  |  |  |  |  |  |  |  |
Number of tax years open for state tax audit (in years) |  |  |  |  |  |  |  |  | 3 years | 5 years
Decrease in gross unrecognized tax benefits balance within next twelve months | $ 1,000,000 |  |  |  |  |  |  |  |  |

X
- Definition Earliest tax year open due to federal net operating loss carryforwards. + References No definition available. + Details
Name: | sd_EarliestTaxYearOpenDueToNetOperatingLoss
Namespace Prefix: | sd_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | sd_IncomeTaxesLineItems
Namespace Prefix: | sd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of taxable years open for state tax audit + References No definition available. + Details
Name: | sd_NumberOfTaxableYearsOpenForTaxAudit
Namespace Prefix: | sd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Earliest expiration date of operating loss carryforward included in total operating loss carryforwards. + References No definition available. + Details
Name: | sd_OperatingLossCarryforwardsBeginningExpirationYear
Namespace Prefix: | sd_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Latest expiration date of operating loss carryforward included in total operating loss carryforwards. + References No definition available. + Details
Name: | sd_OperatingLossCarryforwardsExpirationYear
Namespace Prefix: | sd_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating Loss Carryforwards Subject To Limitation + References No definition available. + Details
Name: | sd_OperatingLossCarryforwardsSubjectToLimitation
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reversal of deferred tax asset valuation allowance + References No definition available. + Details
Name: | sd_ReversalOfDeferredTaxAssetValuationAllowance
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Beginning tax year of years open to federal examination. + References No definition available. + Details
Name: | sd_TaxYearOpenToExamination
Namespace Prefix: | sd_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | instant

X
- Definition Unrecognized excess tax benefits from stock-based compensation. + References No definition available. + Details
Name: | sd_UnrecognizedExcessTaxBenefitsFromStockBasedCompensation
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. + References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Alternative Minimum Tax -URI http://asc.fasb.org/extlink&oid=6504908 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
Name: | us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The estimated upper bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
Name: | us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_UnrecognizedTaxBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 15, 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 15, 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant