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OTHER LONG-TERM LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2022
Other Liabilities, Noncurrent [Abstract] |
Other Noncurrent Liabilities [Table Text Block] | The components of Other long-term liabilities as of December 31, 2022 and 2021 are as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | December 31, 2022 |  | December 31, 2021 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred revenue | ​ | ​ | $ | 5,760 |  | $ | 17,078 | ​
Deferred compensation plan | ​ | ​ | ​ | 25,889 | ​ | ​ | 30,012 | ​
Other | ​ | ​ |  | 34,655 | ​ |  | 32,737 | ​
Total | ​ | ​ | $ | 66,304 |  | $ | 79,827 | ​

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- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
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