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
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]    
Operating lease costs $ 3,548 $ 1,714
Short-term lease costs 1,109 31
Total operating lease costs $ 4,657 $ 1,745