CONVERTIBLE NOTES - Schedule of Interest Expense (Details) - Convertible Notes - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Contractual coupon interest	$ 656	$ 666	$ 892	$ 1,449
Amortization of debt discount and issuance costs	510	154	692	265
Total interest expense on convertible notes	1,166	820	1,584	1,714
2.50% Convertible Notes Due 2023
Debt Instrument [Line Items]
Contractual coupon interest	321	666	557	1,449
Amortization of debt discount and issuance costs	0	154	182	265
Total interest expense on convertible notes	321	820	739	1,714
5.00% Convertible Notes Due 2026
Debt Instrument [Line Items]
Contractual coupon interest	334	0	334	0
Amortization of debt discount and issuance costs	510	0	510	0
Total interest expense on convertible notes	$ 844	$ 0	$ 844	$ 0