DEBT - Schedule of Carrying Values (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Debt Instrument [Line Items]
Less: unamortized discount and issuance costs, net of amortization	$ 0	$ (3,034)
Total	49,375	152,216
Less: current portion of term loan and convertible senior notes	2,813	152,216
Long-term portion of term loan	46,562	0
Convertible Debt \| Convertible senior notes
Debt Instrument [Line Items]
Long-term debt, gross	0	155,250
Line of Credit \| Term loan
Debt Instrument [Line Items]
Long-term debt, gross	49,375	0
Line of Credit \| Revolving credit line
Debt Instrument [Line Items]
Long-term debt, gross	0	$ 0
Total	$ 49,400

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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