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FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	Dec. 31, 2023	Jun. 30, 2023	Jun. 09, 2023	Mar. 13, 2023	Dec. 31, 2022	Aug. 31, 2022	Aug. 15, 2022	Mar. 31, 2018
Jack W. Schuler Living Trust \| Embedded Warrant \| August 2022 Exchange Transaction
Debt Instrument [Line Items]
Warrants fair value							$ 3,800,000
Convertible Notes \| 5.00% Convertible Notes Due 2026
Debt Instrument [Line Items]
Interest rate		5.00%	5.00%
Outstanding principal balance	$ 67,634,000				$ 0
Total convertible notes	36,102,000	$ 66,900,000			0
Convertible Notes \| 5.00% Convertible Notes Due 2026 \| Level 3
Debt Instrument [Line Items]
Fair value	50,800,000		$ 38,200,000
Convertible Notes \| 2.50% Convertible Notes Due 2023
Debt Instrument [Line Items]
Interest rate				2.50%				2.50%
Outstanding principal balance	726,000				56,595,000
Total convertible notes	726,000	$ 66,900,000			56,413,000
Convertible Notes \| 2.50% Convertible Notes Due 2023 \| Level 2
Debt Instrument [Line Items]
Fair value					51,900,000
Senior Notes \| 2.50% Convertible Notes Due 2023 \| Affiliated Entity
Debt Instrument [Line Items]
Total convertible notes	700,000
Senior Notes \| 2.50% Convertible Notes Due 2023 \| Jack W. Schuler Living Trust \| August 2022 Exchange Transaction
Debt Instrument [Line Items]
Fair value						$ 16,000,000
Senior Notes \| Five Point Zero Percent Secured Promissory Note \| Jack W. Schuler Living Trust \| Affiliated Entity
Debt Instrument [Line Items]
Alternative investment	3,400,000
Senior Notes \| Five Point Zero Percent Secured Promissory Note \| Jack W. Schuler Living Trust \| Affiliated Entity \| August 2022 Exchange Transaction
Debt Instrument [Line Items]
Outstanding principal balance	$ 0				34,934,000
Fair value					16,000,000
Total convertible notes					$ 16,858,000