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DEBT - Fair Value Narrative (Details) - USD ($)	Sep. 30, 2025	Sep. 30, 2024	Sep. 13, 2024
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		$ 267,900,000
Term Loan Facility, Initial DDTL and Incremental Term Loans \| Level 2 \| Fair Value, Recurring [Member]
DEBT
Fair value of notes	$ 230,237,000
Convertible Senior Notes \| Level 2 \| Fair Value, Recurring [Member]
DEBT
Fair value of notes	30,942,000	$ 34,233,000
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt
DEBT
Annual interest rate			15.00%
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
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DEBT
Measurement input			1.34
Senior Secured Second Lien PIK Notes Due 2027 \| Secured Debt \| Fair Value, Recurring [Member] \| Measurement Input, Price Volatility
DEBT
Measurement input			0.1500
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	$ 23,256,000