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Variable Interest Entities - Royalty Trusts - Common and Subordinated Units Outstanding (Details) - shares | 9 Months Ended | 12 Months Ended
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Sep. 30, 2015 | Dec. 31, 2014
Mississippian Trust I |  |  |
Variable Interest Entity |  |  |
Total outstanding common units (in shares) | [1] | 28,000,000 | 28,000,000
Total outstanding subordinated units (in shares) | [2] | 0 | 0
Permian Trust |  |  |
Variable Interest Entity |  |  |
Total outstanding common units (in shares) | [1] | 39,375,000 | 39,375,000
Total outstanding subordinated units (in shares) | [2] | 13,125,000 | 13,125,000
Mississippian Trust II |  |  |
Variable Interest Entity |  |  |
Total outstanding common units (in shares) | [1] | 37,293,750 | 37,293,750
Total outstanding subordinated units (in shares) | [2] | 12,431,250 | 12,431,250
[1] | The Mississippian Trust I’s previously outstanding subordinated units, all of which were held by SandRidge, converted to common units in the third quarter of 2014.
[2] | All outstanding subordinated units are owned by SandRidge.

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- Definition Royalty Trust Common Units + References No definition available. + Details
Name: | sd_RoyaltyTrustCommonUnits
Namespace Prefix: | sd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Royalty Trust Subordinated Units + References No definition available. + Details
Name: | sd_RoyaltyTrustSubordinatedUnits
Namespace Prefix: | sd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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_SandRidgeMississippianTrustIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=sd_SandRidgePermianTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=sd_SandRidgeMississippianTrustIiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |