Commitments and contingencies.

No definition available.

Name:	gden_CommitmentsAndContingenciesLineItems
Namespace Prefix:	gden_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount that the Company could be liable for estimated severance payments.

+ References

No definition available.

+ Details

Name:	gden_LiabilityContingencyEstimatedSeverancePayments
Namespace Prefix:	gden_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the cost of generating revenues from a hotel's, including cruise lines, gaming operations; likewise, such revenues may be derived from gaming operations that also are hoteliers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_CasinoExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

+ Details

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_OtherCostAndExpenseOperating
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CounterpartyNameAxis=gden_MrSartiniMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=gden_StephenArcanaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=gden_CharlesHProtellMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=gden_SeanTHigginsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=gden_OtherExecutiveOfficersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=gden_ParticipationAndRevenueShareAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=gden_RelatedPartyTransactionRevenueShareAndParticipationAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=gden_RevenueShareAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Commitments And Contingencies [Line Items]
Gaming Expenses	$ 280,121,000	$ 250,791,000	$ 98,268,000
Other Operating Expenses	6,765,000	5,566,000	2,260,000
Amount recorded for claims	1,500,000
Mr. Sartini [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	6,100,000
Stephen Arcana [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	1,900,000
Charles H. Protell [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	1,900,000
Sean T. Higgins [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	1,600,000
Other Executive Officers [Member] \| Minimum [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	400,000
Other Executive Officers [Member] \| Maximum [Member]
Commitments And Contingencies [Line Items]
Liability Contingency, Estimated Severance Payments	700,000
Participation and Revenue Share Agreements [Member]
Commitments And Contingencies [Line Items]
Gaming Expenses	143,300,000	128,100,000	41,700,000
Participation and Revenue Share Agreements [Member] \| Related Party Transaction, Revenue Share and Participation Agreement [Member]
Commitments And Contingencies [Line Items]
Gaming Expenses	1,000,000	2,100,000	700,000
Revenue Share Agreements [Member]
Commitments And Contingencies [Line Items]
Other Operating Expenses	$ 1,400,000	$ 900,000	$ 0