DEBT AND FINANCING ARRANGEMENTS - Interest Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Debt Disclosure [Abstract]
Contractual interest expense (due in cash)	$ 575	$ 575	$ 1,725	$ 1,725
Amortization of debt discount	0	2,398	0	7,078
Amortization of debt issuance costs	365	222	1,095	644
Total interest expense related to the Notes	$ 940	$ 3,195	$ 2,820	$ 9,447
Debt instrument, interest rate	1.64%	5.56%	1.64%	5.56%