OTHER LONG TERM LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Liabilities, Noncurrent [Abstract]
Deferred revenue - long-term	$ 17,078	$ 17,434
Deferred Compensation Liability, Classified, Noncurrent	30,012	23,858
Deferred social security taxes		15,986
Other Accrued Liabilities, Noncurrent	32,737	38,907
Other Liabilities, Noncurrent, Total	$ 79,827	$ 96,185