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DEBT - Schedule of Interest Expense on Convertible Debt (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Schedule Of Interest Expenses [Line Items] |  |  |  |
Total interest expense on convertible debt | $ 3,755 | $ 3,859 | $ 7,458 | $ 7,665
Convertible Senior Notes |  |  |  |
Schedule Of Interest Expenses [Line Items] |  |  |  |
Coupon interest expense | 2,617 | 2,617 | 5,233 | 5,233
Accretion of discount on convertible notes | 834 | 837 | 1,673 | 1,673
Amortization of debt issuance costs | 149 | 148 | 297 | 297
Total interest expense on convertible debt | $ 3,600 | $ 3,602 | $ 7,203 | $ 7,203

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