Quarterly report pursuant to Section 13 or 15(d)

LEASES - Schedule of operating lease assets (Details)

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LEASES - Schedule of operating lease assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Leases [Abstract]    
Operating lease costs $ 5,687 $ 2,660
Short-term lease costs 192 22
Total operating lease costs $ 5,879 $ 2,682