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Property, Plant and Equipment - Capitalized Costs of Unproved Properties Excluded from Amortization (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Pipe inventory costs, cumulative	$ 53.6sd_PipeInventoryCostsCumulative
Pipe inventory costs, period costs	$ 21.3sd_PipeInventoryCostsPeriodCosts	$ 30.7sd_PipeInventoryCostsPeriodCosts	$ 1.6sd_PipeInventoryCostsPeriodCosts

X

- Definition

Pipe inventory costs, cumulative

+ References

No definition available.

+ Details

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

X

- Definition

Pipe inventory costs, period costs

+ References

No definition available.

+ Details

Name:	sd_PipeInventoryCostsPeriodCosts
Namespace Prefix:	sd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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