CONVERTIBLE NOTES - 2.50% Notes (Narrative) (Details) - USD ($)	1 Months Ended				12 Months Ended
	Mar. 31, 2023	Aug. 31, 2022	Apr. 30, 2018	Mar. 31, 2018	Dec. 31, 2024	Dec. 31, 2023	Aug. 31, 2024	Oct. 18, 2023	Aug. 31, 2023	Jun. 30, 2023	Jun. 09, 2023	Mar. 15, 2023
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 15,000,000	$ 0
Outstanding Notes | Lender | Ad Hoc Noteholder Group
Debt Instrument [Line Items]
Risk concentration (as a percent)	85.00%
5.00% Convertible Notes Due 2026 | Convertible Notes
Debt Instrument [Line Items]
Interest rate (as a percent)					5.00%	5.00%	5.00%		5.00%	5.00%	5.00%
Aggregate principal amount										$ 10,000,000
Contractual term (in years)										3 years 6 months
Initial conversion price (in dollars per share)								$ 7.20
5.00% Convertible Notes Due 2026 | Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)										5.00%
Aggregate principal amount										$ 66,900,000
2.50% Convertible Notes due 2023 | Convertible Notes
Debt Instrument [Line Items]
Interest rate (as a percent)				2.50%		2.50%						2.50%
Aggregate principal amount				$ 150,000,000		$ 700,000
Over-allotment option, term (in days)				13 days
Over-allotment option				$ 22,500,000
Additional proceeds			$ 21,500,000
Proceeds from issuance of debt			$ 171,500,000
Contractual term (in years)			5 years
2.50% Convertible Notes due 2023 | Convertible Notes | August 2022 Exchange Transaction | Jack W. Schuler Living Trust
Debt Instrument [Line Items]
Aggregate principal amount exchanged		$ 49,900,000
Forbearance Agreement
Debt Instrument [Line Items]
Default indebtedness outstanding	$ 15,000,000
Default forbearance premium	$ 0.005
Forbearance Agreement | Ad Hoc Noteholder Group
Debt Instrument [Line Items]
Forbearance premium						$ 200,000
Five Point Zero Percent Secured Promissory Note | Senior Notes | Affiliated Entity | Jack W. Schuler Living Trust
Debt Instrument [Line Items]
Initial conversion price (in dollars per share)											$ 10.60
Five Point Zero Percent Secured Promissory Note | Senior Notes | August 2022 Exchange Transaction | Affiliated Entity
Debt Instrument [Line Items]
Initial conversion price (in dollars per share)		$ 21.20
Five Point Zero Percent Secured Promissory Note | Senior Notes | August 2022 Exchange Transaction | Affiliated Entity | Jack W. Schuler Living Trust
Debt Instrument [Line Items]
Aggregate principal amount exchanged		$ 34,900,000