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SIGNIFICANT ACCOUNTING POLICIES - Deferred revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
SIGNIFICANT ACCOUNTING POLICIES    
Balance, at the beginning of the year $ 54,616 $ 49,136
Revenue recognized (38,625) (31,456)
Increase in deferred revenues and customer advances 36,595 36,936
Balance, at the end of the year 52,586 54,616
Less current portion at the end of the year (36,634) (41,591)
Long term portion at the end of the year $ 15,952 $ 13,025