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Financial Instruments and Fair Value - Schedule of Available-for-Sale Securities at Fair Value (Detail) - USD ($) $ in Thousands | Jan. 31, 2025 | Jan. 31, 2024
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | $ 109,725 | $ 113,299
Unrealized Gains | 139 | 194
Unrealized Losses | (372) | (377)
Fair Value | 109,492 | 113,116
Money market funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 849 | 296
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Value | 849 | 296
Fixed deposits [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 3,000 | 7,000
Unrealized Gains | 0 |
Unrealized Losses | 0 |
Fair Value | 3,000 | 7,000
Commercial paper [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 0 | 30,806
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Value | 0 | 30,806
Corporate bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 55,138 | 38,867
Unrealized Gains | 111 | 180
Unrealized Losses | (123) | (135)
Fair Value | 55,126 | 38,912
Asset-backed securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 20,412 | 15,212
Unrealized Gains | 20 | 14
Unrealized Losses | (67) | (96)
Fair Value | 20,365 | 15,130
U.S. government securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 30,326 | 21,118
Unrealized Gains | 8 | 0
Unrealized Losses | (182) | (146)
Fair Value | $ 30,152 | $ 20,972

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