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v3.23.2

Financial Instruments and Fair Value - Schedule of Available-for-Sale Securities at Fair Value (Detail) - USD ($) $ in Thousands | Jul. 31, 2023 | Jan. 31, 2023
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | $ 103,805 | $ 101,686
Unrealized Gains | 41 | 116
Unrealized Losses | (971) | (608)
Fair Value | 102,875 | 101,194
Money market funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 3,492 | 7,872
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Value | 3,492 | 7,872
Commercial paper [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 9,382 | 18,333
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Value | 9,382 | 18,333
Corporate bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 42,870 | 23,472
Unrealized Gains | 41 | 50
Unrealized Losses | (398) | (224)
Fair Value | 42,513 | 23,298
Asset-backed securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 19,609 | 18,753
Unrealized Gains | 0 | 44
Unrealized Losses | (217) | (149)
Fair Value | 19,392 | 18,648
U.S. government securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 28,452 | 33,256
Unrealized Gains | 0 | 22
Unrealized Losses | (356) | (235)
Fair Value | $ 28,096 | $ 33,043

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