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CREDIT FACILITY AND LONG-TERM DEBT CREDIT FACILITY AND LONG-TERM DEBT (Tables)
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Convertible Debt
The following table summarizes the net carrying amount of the Notes as of December 31, 2020 (in thousands):

December 31, 2020December 31, 2019
Principal amount of the Notes$86,250 $86,250 
Unamortized debt discount(37,791)(40,902)
Net carrying amount$48,459 $45,348