FINANCING ARRANGEMENTS - Indenture and Convertible Senior Notes (Details) - USD ($)		12 Months Ended
	Jun. 12, 2023	Dec. 31, 2023	Dec. 31, 2022	Jan. 20, 2022	Nov. 01, 2021
Line of Credit Facility
Total liabilities at fair value.		$ 56,591,000	$ 65,867,000	$ 79,000,000
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Additional paid-in capital
Unamortized debt			33,900,000
Convertible Senior Notes Due 2027, 6.25% | Senior Notes
Line of Credit Facility
Principal balance at beginning of period	$ 79,900,000		$ 60,000,000		$ 155,000,000
Debt instrument, stated rate (as a percent)	6.25%		6.25%		6.25%
Issue price, percentage					90.00%
Common stock issued upon conversion of the convertible notes (in shares)	17,200,000	17,200,000	10,200,000
Unamortized debt	$ 40,700,000
Interest paid	1,000,000
Inducement cost	$ 21,200,000