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Nature of Business and Basis of Presentation (Details Textual) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2016 Segment | Apr. 22, 2016 Device | Jan. 29, 2016 Device
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Number of reportable operating segments | Segment | 2 |  |
Initial Montana Acquisition [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Number of gaming devices acquired |  |  | 1,100
Second Montana Acquisition [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Number of gaming devices acquired |  | 1,800 |

X
- Definition Business acquisition number of gaming devices acquired. + References No definition available. + Details
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Namespace Prefix: | gden_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Nature of business and basis of presentation line items. + References No definition available. + Details
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Namespace Prefix: | gden_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |