XML 55 R42.htm IDEA: XBRL DOCUMENT
v3.19.1

Schedule II - Valuation and Qualifying Accounts (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Valuation And Qualifying Accounts [Abstract] |
Summary of Allowance for Deferred Income Tax Valuation Allowance |
| Balance at Beginning of Period |  |  | Increase |  |  | Decrease |  |  | Balance at End of Period |
Deferred income tax valuation allowance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year Ended December 31, 2018 | $ | 6,983 |  |  | $ | 16,293 |  |  | $ | — |  |  | $ | 23,276 |
Year Ended December 31, 2017 |  | 18,109 |  |  |  | — |  |  |  | (11,126 | ) |  |  | 6,983 |
Year Ended December 31, 2016 |  | 25,593 |  |  |  | — |  |  |  | (7,484 | ) |  |  | 18,109 |

X
- Definition Tabular disclosure of the allowance for deferred income taxes. + References No definition available. + Details
Name: | gden_SummaryOfAllowanceForDeferredIncomeTaxValuationAllowanceTableTextBlock
Namespace Prefix: | gden_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ValuationAndQualifyingAccountsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration