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OTHER LONG-TERM LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2021

Other Liabilities, Noncurrent [Abstract]

Other Noncurrent Liabilities [Table Text Block]

The components of Other long-term liabilities as of September 30, 2021 and December 31, 2020 are as follows (in thousands):

​

​	​	​	​	​	​	​	​	​
​	​	​	September 30, 2021			December 31, 2020		​
​	​	​	​	​	​	​	​	​
Deferred revenue	​	​	$	21,158		$	17,434	​
Deferred compensation plan	​	​	​	28,221	​	​	23,858	​
Deferred social security taxes	​	​	​	16,983	​	​	15,986	​
Other	​	​		30,557	​		38,907	​
Total	​	​	$	96,919		$	96,185	​

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- Definition

Tabular disclosure of other noncurrent liabilities.

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