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Variable Interest Entities - Royalty Trusts - Assets and Liabilities Included in Unaudited Condensed Consolidated Balance Sheets (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Variable Interest Entity
Cumulative full cost ceiling limitation impairment	$ 4,800.0sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation	$ 3,700.0sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation
Royalty Trusts
Variable Interest Entity
Reserves for expenses	3.0sd_ReservesForExpenses / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember	3.0sd_ReservesForExpenses / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember
Cumulative full cost ceiling limitation impairment	$ 222.9sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember	$ 42.3sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember

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- Definition

Oil and Gas Property, Cumulative Impairment based on Ceiling Test Calculation.

+ References

No definition available.

+ Details

Name:	sd_OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation
Namespace Prefix:	sd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Reserves held by the trustee for future general and administrative expenses.

+ References

No definition available.

+ Details

Name:	sd_ReservesForExpenses
Namespace Prefix:	sd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Details

Name:	us-gaap_VariableInterestEntityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=sd_RoyaltyTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: