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DEBT - Fair Value Narrative (Details)	Sep. 30, 2024 USD ($)	Sep. 13, 2024 USD ($)	Sep. 30, 2023 USD ($)
Fair Value, Nonrecurring [Member]
DEBT
Fair value of warrants		$ 4,768,000
Level 2 \| Term Loan Facility, Initial DDTL and Incremental Term Loans \| Fair Value, Recurring [Member]
DEBT
Fair value of notes			$ 251,200,000
Term Loan Facility, Initial DDTL and Incremental Term Loans \| Level 2 \| Fair Value, Recurring [Member]
DEBT
Fair value of notes	$ 267,900,000
Convertible Senior Notes \| Level 2 \| Fair Value, Recurring [Member]
DEBT
Fair value of notes	34,233,000		$ 70,000,000
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Nonrecurring [Member]
DEBT
Annual interest rate		15.00%
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Nonrecurring [Member] \| the Purchasers
DEBT
Fair value of notes		$ 17,232,000
Debt acquired		$ 22,000,000
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Nonrecurring [Member] \| Measurement Input, Expected Term [Member]
DEBT
Measurement input		2.39
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Nonrecurring [Member] \| Measurement Input, Price Volatility
DEBT
Measurement input		0.1750
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Nonrecurring [Member] \| Measurement Input, Credit Spread [Member]
DEBT
Measurement input		0.1518
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Recurring [Member]
DEBT
Annual interest rate		15.00%
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Recurring [Member] \| Measurement Input, Expected Term [Member]
DEBT
Measurement input		2.34
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Recurring [Member] \| Measurement Input, Price Volatility
DEBT
Measurement input		0.1750
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Recurring [Member] \| Measurement Input, Credit Spread [Member]
DEBT
Measurement input		0.1518
Senior Secured Second Lien PIK Notes Due 2027 \| Level 2 \| Fair Value, Recurring [Member]
DEBT
Fair value of notes	$ 16,897,000