DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Convertible notes
Debt Instrument [Line Items]
Amortization of debt discount	$ 1,327	$ 6,124	$ 9,267
Amortization of debt issuance costs	89	409	618
PIK interest	18,107	21,174	16,155
Total interest expense	19,523	27,707	26,040
2022 promissory note \| 2022 promissory note
Debt Instrument [Line Items]
Amortization of debt discount	298	4,147	3,295
Amortization of debt issuance costs	3	35	28
PIK interest	839	12,831	11,910
Cash interest	448	6,843	6,335
Total interest expense	1,588	$ 23,856	$ 21,568
Revolving Credit Facility \| Vista Facility \| Secured Debt
Debt Instrument [Line Items]
Amortization of debt discount	1,108
Amortization of debt issuance costs	366
PIK interest	1,355
Cash interest	8,395
Total interest expense	$ 11,224

Interest Expense, Debt, Excluding Amortization, Cash

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