Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Indefinite-lived intangible assets
Indefinite-lived intangible assets	$ 53,690	$ 53,690	$ 53,690
Indefinite-lived intangible assets, Cumulative Impairment	(6,900)	(6,890)	(6,890)
Indefinite-lived intangible assets, Net	46,800	46,800	46,800
Amortizing intangible assets
Amortizing intangible assets, Gross Carrying Value	139,589	139,589	139,589
Amortizing intangible assets, Cumulative Amortization	(80,280)	(88,331)	(80,280)
Amortizing intangible assets, Intangible Assets, Net	59,309	51,258	59,309
Intangible assets, Gross Carrying Value	193,279	193,279	193,279
Intangible assets, Cumulative Impairment		(6,890)	(6,890)
Total intangible assets, Net	106,109	98,058	106,109
Customer relationships
Amortizing intangible assets
Amortizing intangible assets, Gross Carrying Value	81,105	81,105	81,105
Amortizing intangible assets, Cumulative Amortization	(30,012)	(35,879)	(30,012)
Amortizing intangible assets, Intangible Assets, Net	51,093	$ 45,226	$ 51,093
Customer relationships \| Minimum
Amortizing intangible assets
Intangible assets, useful life (in years)		4 years	4 years
Customer relationships \| Maximum
Amortizing intangible assets
Intangible assets, useful life (in years)		16 years	16 years
Player relationships
Amortizing intangible assets
Amortizing intangible assets, Gross Carrying Value	42,990	$ 42,990	$ 42,990
Amortizing intangible assets, Cumulative Amortization	(39,116)	(39,812)	(39,116)
Amortizing intangible assets, Intangible Assets, Net	3,874	$ 3,178	$ 3,874
Player relationships \| Minimum
Amortizing intangible assets
Intangible assets, useful life (in years)		2 years	2 years
Player relationships \| Maximum
Amortizing intangible assets
Intangible assets, useful life (in years)		14 years	14 years
Non-compete agreements
Amortizing intangible assets
Amortizing intangible assets, Gross Carrying Value	9,840	$ 9,840	$ 9,840
Amortizing intangible assets, Cumulative Amortization	(7,385)	(8,349)	(7,385)
Amortizing intangible assets, Intangible Assets, Net	2,455	$ 1,491	$ 2,455
Non-compete agreements \| Minimum
Amortizing intangible assets
Intangible assets, useful life (in years)		2 years	2 years
Non-compete agreements \| Maximum
Amortizing intangible assets
Intangible assets, useful life (in years)		5 years	5 years
Gaming license
Amortizing intangible assets
Intangible assets, useful life (in years)		15 years	15 years
Amortizing intangible assets, Gross Carrying Value	2,100	$ 2,100	$ 2,100
Amortizing intangible assets, Cumulative Amortization	(1,070)	(1,210)	(1,070)
Amortizing intangible assets, Intangible Assets, Net	1,030	$ 890	$ 1,030
In-place lease value
Amortizing intangible assets
Intangible assets, useful life (in years)		4 years	4 years
Amortizing intangible assets, Gross Carrying Value	1,170	$ 1,170	$ 1,170
Amortizing intangible assets, Cumulative Amortization	(918)	(1,155)	(918)
Amortizing intangible assets, Intangible Assets, Net	252	$ 15	$ 252
Leasehold interest
Amortizing intangible assets
Intangible assets, useful life (in years)		4 years	4 years
Amortizing intangible assets, Gross Carrying Value	570	$ 570	$ 570
Amortizing intangible assets, Cumulative Amortization	(504)	(570)	(504)
Amortizing intangible assets, Intangible Assets, Net	66	0	66
Other
Amortizing intangible assets
Amortizing intangible assets, Gross Carrying Value	1,814	1,814	1,814
Amortizing intangible assets, Cumulative Amortization	(1,275)	(1,356)	(1,275)
Amortizing intangible assets, Intangible Assets, Net	539	$ 458	$ 539
Other \| Minimum
Amortizing intangible assets
Intangible assets, useful life (in years)		4 years	4 years
Other \| Maximum
Amortizing intangible assets
Intangible assets, useful life (in years)		25 years	25 years
Trade names
Indefinite-lived intangible assets
Indefinite-lived intangible assets	53,690	$ 53,690	$ 53,690
Indefinite-lived intangible assets, Cumulative Impairment		(6,890)	(6,890)
Indefinite-lived intangible assets, Net	$ 46,800	$ 46,800	$ 46,800

Indefinite lived intangible assets excluding goodwill, net.

No definition available.

Name:	gden_IndefiniteLivedIntangibleAssetsExcludingGoodwillNet
Namespace Prefix:	gden_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

+ Details

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

- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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

- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

+ Details

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

- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

+ Details

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

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=gden_PlayerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_NoncompeteAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=gden_FiniteLivedGamingLicensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=gden_InPlaceLeaseValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=gden_LeaseholdInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: