STOCKHOLDERS' EQUITY - Stock-Based Compensation Expense Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2026	Apr. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 74,889	$ 68,655
Stock-Based Compensation \| Prompt
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,700
Stock-Based Compensation \| Observo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 5,700

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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