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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Operating items, net (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Other operating items, net | $ 5,910 | $ 7,115 | $ 4,929
Net proceeds from a sale of a COVID closure related insurance claim | 1,200 |  |
Professional service fees relating to our construction litigation | 6,900 | 7,300 | 5,100
Litigation proceeds |  |  | 300
Gain (loss) on disposition of assets |  | 100 | (100)
Insurance claim proceeds |  | $ 100 | 100
Equipment, supplies and employee testing expenses directly attributable to the pandemic for reopening of the properties and incremental to normal operations |  |  | $ 100
Unamortized debt issuance cost write off and loss on disposal of assets | $ 200 |  |

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- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 + Details
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