RELATED PARTY TRANSACTIONS - Secured Note Amendment and Exchange (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Jun. 09, 2023	Dec. 31, 2024	Aug. 31, 2022
Debt Instrument [Line Items]
Share price (in dollars per share)	$ 7.40	$ 1.15
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
Shares issued (in shares)	3.4
2.50% Notes extinguished in connection with exchange transaction	$ 25.4
Extinguishment of debt	19.3
Loss on extinguishment of debt	$ 6.1
August 2022 Exchange Transaction | Five Point Zero Percent Secured Promissory Note | Senior Notes | Affiliated Entity
Debt Instrument [Line Items]
Initial conversion price (in dollars per share)			$ 21.20