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Estimated Retail Value of Promotional Allowance (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Promotional Allowances [Line Items] |  |  |  |
Promotional allowances | $ 5,426 | $ 4,982 | $ 16,584 | $ 14,432
Food and Beverage [Member] |  |  |  |
Promotional Allowances [Line Items] |  |  |  |
Promotional allowances | 4,538 | 4,147 | 14,243 | 12,344
Rooms [Member] |  |  |  |
Promotional Allowances [Line Items] |  |  |  |
Promotional allowances | 700 | 678 | 1,860 | 1,637
Other [Member] |  |  |  |
Promotional Allowances [Line Items] |  |  |  |
Promotional allowances | $ 188 | $ 157 | $ 481 | $ 451

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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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- Definition This element represents the estimated retail value of accommodations, food and beverage, and other services furnished to guests without charge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 605 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68080496&loc=d3e51325-107943 + Details
Name: | us-gaap_PromotionalAllowances
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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: |