CASH, CASH EQUIVALENTS AND INVESTMENTS - Investments (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Jan. 31, 2024
CASH, CASH EQUIVALENTS AND INVESTMENTS
Short-term investments	$ 69,292	$ 109,489
Available-for-sale securities	182,705	105,884
Total investments	$ 251,997	$ 215,373

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details