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DEBT - Interest Expense (Details) - Convertible debt - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 29, 2020
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Debt Instrument [Line Items]          
Interest rate 0.75% 0.75% 0.75% 0.75% 0.75%
Contractual interest expense (0.75% coupon)   $ 997 $ 1,125 $ 2,122 $ 2,250
Amortization of issuance costs   647 720 1,375 1,439
Interest expense   $ 1,644 $ 1,845 $ 3,497 $ 3,689