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RELATED-PARTY TRANSACTIONS - August 2022 Exchange Agreement (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended
	Aug. 31, 2022	Jun. 30, 2024	Apr. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Jun. 09, 2023	Mar. 15, 2023	Aug. 15, 2022	Mar. 31, 2018
Related Party Transaction [Line Items]
Common Warrants		$ 4,807		$ 0
2.50% Convertible Notes Due 2023 \| Convertible Notes
Related Party Transaction [Line Items]
Interest rate		2.50%	2.50%	2.50%	2.50%		2.50%		2.50%
5.0% Secured Promissory Note \| Senior Notes \| Affiliated Entity \| Schuler Trust
Related Party Transaction [Line Items]
Initial conversion price (in usd per share)						$ 10.60
August 2022 Exchange Transaction \| Schuler Trust \| Embedded Warrant
Related Party Transaction [Line Items]
Common Warrants								$ 3,800
August 2022 Exchange Transaction \| Affiliated Entity \| Schuler Trust \| Embedded Warrant
Related Party Transaction [Line Items]
Warrants issued (in shares)	247,171
August 2022 Exchange Transaction \| 2.50% Convertible Notes Due 2023 \| Convertible Notes \| Schuler Trust
Related Party Transaction [Line Items]
Notes exchanged	$ 49,900
August 2022 Exchange Transaction \| 5.0% Secured Promissory Note \| Senior Notes \| Affiliated Entity
Related Party Transaction [Line Items]
Initial conversion price (in usd per share)	$ 21.20
August 2022 Exchange Transaction \| 5.0% Secured Promissory Note \| Senior Notes \| Affiliated Entity \| Schuler Trust
Related Party Transaction [Line Items]
Notes exchanged	$ 34,900