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CASH, CASH EQUIVALENTS AND INVESTMENTS - Investments (Details) - USD ($) $ in Thousands | Jan. 31, 2024 | Jan. 31, 2023
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CASH, CASH EQUIVALENTS AND INVESTMENTS |  |
Short-term investments | $ 109,489 | $ 151,511
Available-for-sale securities | 105,884 |
Total investments | $ 215,373 | $ 151,511

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