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Estimated Cost of Providing Promotional Allowances (Details) - Gaming expenses [Member] - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Promotional Allowances [Line Items] |  |
Estimated Cost of Promotional Allowances | $ 3,605 | $ 3,286
Food and Beverage [Member] |  |
Promotional Allowances [Line Items] |  |
Estimated Cost of Promotional Allowances | 3,358 | 3,014
Rooms [Member] |  |
Promotional Allowances [Line Items] |  |
Estimated Cost of Promotional Allowances | 164 | 191
Other [Member] |  |
Promotional Allowances [Line Items] |  |
Estimated Cost of Promotional Allowances | $ 83 | $ 81

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- Definition Promotional allowances estimated cost. + References No definition available. + Details
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Namespace Prefix: | gden_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Promotional allowances. + References No definition available. + Details
Name: | gden_PromotionalAllowancesLineItems
Namespace Prefix: | gden_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_IncomeStatementLocationAxis=gden_GamingExpensesIncomeStatementLocationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=gden_FoodAndBeverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=gden_RoomsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=gden_OtherPromotionalAllowancesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |