DEBT - Summary of Interest Expense on Convertible Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule Of Interest Expenses [Line Items]
Total interest expense on convertible debt	$ 4,679	$ 3,870	$ 12,344	$ 11,491
Convertible Senior Notes
Schedule Of Interest Expenses [Line Items]
Coupon interest expense	2,616	2,617	7,849	7,849
Accretion of discount on convertible notes	838	835	2,511	2,503
Amortization of debt issuance costs	148	148	445	445
Total interest expense on convertible debt	$ 3,602	$ 3,600	$ 10,805	$ 10,797