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Equity - Narrative (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Apr. 01, 2015
Equity Disclosure
Additional paid-in capital—stockholder receivable	$ (2,500,000)sd_AdditionalPaidInCapitalStockholderReceivable		(2,500,000)sd_AdditionalPaidInCapitalStockholderReceivable
Restricted Stock
Equity Disclosure
Stock-based compensation	4,800,000us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember	7,400,000us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Stock-based compensation, capitalized	$ 1,200,000us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember	$ 1,900,000us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
8.5% Convertible perpetual preferred stock
Equity Disclosure
Preferred stock, dividend rate, percentage	8.50%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = sd_ConvertibleEightPointFivePercentPerpetualPreferredStockMember	8.50%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = sd_ConvertibleEightPointFivePercentPerpetualPreferredStockMember
6.0% Convertible perpetual preferred stock
Equity Disclosure
Preferred stock, dividend rate, percentage		6.00%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = sd_ConvertibleSixPercentPerpetualPreferredStockMember
Shares of common stock issued related to the conversion of 6% preferred stock (in shares)			18.4us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = sd_ConvertibleSixPercentPerpetualPreferredStockMember
7.0% Convertible perpetual preferred stock
Equity Disclosure
Preferred stock, dividend rate, percentage	7.00%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = sd_ConvertibleSevenPercentPerpetualPreferredStockMember	7.00%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = sd_ConvertibleSevenPercentPerpetualPreferredStockMember
Subsequent Event | 7.0% Convertible perpetual preferred stock
Equity Disclosure
Dividends declared				$ 3.50us-gaap_PreferredStockDividendsPerShareDeclared / us-gaap_StatementClassOfStockAxis = sd_ConvertibleSevenPercentPerpetualPreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition

Additional paid-in capital - stockholder receivable

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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

-Publisher FASB

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- Definition

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- Definition

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- Definition

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Number of shares issued during the period as a result of the conversion of convertible securities.

+ References

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-Publisher SEC

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-Number 210

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