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OTHER LONG TERM LIAB | 12 Months Ended
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Dec. 31, 2021
Other Liabilities, Noncurrent [Abstract] |
Other Liabilities Disclosure [Text Block] | (16) OTHER LONG-TERM LIABILITIES The components of Other long-term liabilities as of December 31, 2021 and 2020 are as follows (in thousands):
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​ | ​ | ​ | December 31, 2021 |  | December 31, 2020 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred revenue | ​ | ​ | $ | 17,078 |  | $ | 17,434 | ​
Deferred compensation plan | ​ | ​ | ​ | 30,012 | ​ | ​ | 23,858 | ​
Deferred social security taxes | ​ | ​ | ​ | — | ​ | ​ | 15,986 | ​
Other | ​ | ​ |  | 32,737 | ​ |  | 38,907 | ​
Total | ​ | ​ | $ | 79,827 |  | $ | 96,185 | ​
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- Definition The entire disclosure for other liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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