XML 54 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Fair Value Measurements - Narrative (Details) - USD ($) | Dec. 31, 2017 | Feb. 10, 2017 | Oct. 04, 2016
--- | --- | --- | ---
New Building Note | Secured Notes |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis |  |  |
Face amount of debt instrument |  | $ 35,000,000.0 | $ 35,000,000.0
Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis |  |  |
Fair value of investments | $ 5,072,000 |  |
Fair Value, Measurements, Recurring | Fair Value Measurements Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis |  |  |
Fair value of investments | 5,072,000 |  |
Fair Value, Measurements, Recurring | Fair Value Measurements Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis |  |  |
Fair value of investments | $ 0 |  |

X
- References No definition available. + Details
Name: | sd_DeferredCompensationPlanFairValueofPlanAssets
Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] + References No definition available. + Details
Name: | sd_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems
Namespace Prefix: | sd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=sd_NewBuildingNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |