v3.26.1
DEBT - Schedule of Interest Costs Recognized on 2026 Notes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Debt Instrument [Line Items]        
Total interest expense recognized $ 721 $ 2,469 $ 4,713 $ 7,274
Convertible Debt | 2026 Notes        
Debt Instrument [Line Items]        
Contractual interest expense 721 290 1,679 871
Amortization of debt discount and issuance costs 0 2,179 3,034 6,403
Total interest expense recognized $ 721 $ 2,469 $ 4,713 $ 7,274