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Leases - Summary of Minimum and Contingent Operating Lease Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Leases [Abstract] |  |  |
Minimum rental income | $ 6,041 | $ 3,913 | $ 7,479
Contingent rental income | 3,169 | 1,840 | 1,527
Total rental income | $ 9,210 | $ 5,753 | $ 9,006

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- Definition Lessor, Operating Lease, Contingent Revenue + References No definition available. + Details
Name: | gden_LessorOperatingLeaseContingentRevenue
Namespace Prefix: | gden_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Lessor, Operating Lease, Lease Revenue + References No definition available. + Details
Name: | gden_LessorOperatingLeaseLeaseRevenue
Namespace Prefix: | gden_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Lessor, Operating Lease, Minimum Lease Revenue + References No definition available. + Details
Name: | gden_LessorOperatingLeaseMinimumLeaseRevenue
Namespace Prefix: | gden_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration