DEBT AND FINANCING ARRANGEMENTS - Interest Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Debt Disclosure [Abstract]
Contractual interest expense (due in cash)	$ 575	$ 575
Amortization of debt issuance costs	365	365
Total interest expense related to the 2020 Convertible Senior Notes	$ 940	$ 940
Effective interest rate	1.64%	1.64%