DEBT - Interest expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Interest Expense, Debt [Abstract]
Coupon interest		$ 2,686
Amortization of debt discount		218
Amortization of transaction costs		58
Total interest expense		$ 2,962
2027 Convertible Notes
Interest Expense, Debt [Abstract]
Coupon interest	$ 1,739
Amortization of debt discount	186
Amortization of transaction costs	50
Total interest expense	$ 1,975