Financial Instruments and Fair Value - Summary of Contractual Maturities of Investments (Detail) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Due within one year	$ 35,405	$ 57,216
Due in 1 - 5 years	74,087	55,900
Total cash equivalents and marketable debt securities	$ 109,492	$ 113,116