Quarterly report pursuant to Section 13 or 15(d)

LEASES (Lease Cost) (Details)

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LEASES (Lease Cost) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Leases [Abstract]    
Operating lease cost $ 32 $ 4,082
Variable lease cost 0 224
Short-term lease cost 2,189 2,810
Total lease cost $ 2,221 $ 7,116