Commitments and Contingencies - Additional Information (Detail) - USD ($)	Jul. 31, 2024	Jan. 31, 2024
Loss Contingencies [Line Items]
Total manufacturing purchase commitments	$ 57,500,000	$ 30,700,000
Loss recognized from adverse purchase commitments	0	0
Noncancellable service commitment	5,200,000	0
Indemnification agreement [Member]
Loss Contingencies [Line Items]
Payments under indemnification obligations	0
Liabilities recorded under indemnification obligations	0	0
Other Matters [Member]
Loss Contingencies [Line Items]
Liabilities recorded under indemnification obligations	$ 0	$ 0