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Income Taxes - Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Income Taxes [Line Items]
Valuation allowance	$ 649,592,000us-gaap_DeferredTaxAssetsValuationAllowance	$ 753,451,000us-gaap_DeferredTaxAssetsValuationAllowance	$ 557,300,000us-gaap_DeferredTaxAssetsValuationAllowance
Reversal of deferred tax asset valuation allowance	0us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount	(3,842,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount	100,288,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Alternative minimum tax credits, not subject to expiration	9,300,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
Federal net operating loss carryovers, subject to expiration	3,400,000,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration			929,400,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
Unrecognized excess tax benefits from stock based compensation	17,700,000sd_UnrecognizedExcessTaxBenefitsFromStockBasedCompensation
Unrecognized tax benefits	77,000us-gaap_UnrecognizedTaxBenefits	1,382,000us-gaap_UnrecognizedTaxBenefits	1,330,000us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits, accrued gross interest	(100,000)us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	(100,000)us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Unrecognized tax benefits, accrued liability		100,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Dynamic Acquisition
Income Taxes [Line Items]
Reversal of deferred tax asset valuation allowance			$ 100,300,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_BusinessAcquisitionAxis = sd_DynamicAcquisitionMember
Minimum
Income Taxes [Line Items]
Number of tax years open for state tax audit (in years)	3 years
Maximum
Income Taxes [Line Items]
Number of tax years open for state tax audit (in years)	5 years
Earliest Tax Year
Income Taxes [Line Items]
Operating loss carryforwards expiration year	2023
Latest Tax Year
Income Taxes [Line Items]
Operating loss carryforwards expiration year	2034
Domestic Tax Authority | Earliest Tax Year
Income Taxes [Line Items]
Open tax year	2011
Net Operating Loss And Other Carryforwards | Earliest Tax Year
Income Taxes [Line Items]
Open tax year	2005
Net Operating Loss And Other Carryforwards | Latest Tax Year
Income Taxes [Line Items]
Open tax year	2010

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