Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Lessee, Lease, Description [Line Items]
Additional operating lease right-of-use assets			$ 3.5
Additional operating lease liabilities			3.5
Operating lease expense	$ 0.9	$ 1.0	$ 2.9	$ 2.8
Weighted-average remaining lease term - operating leases	2 years 2 months 8 days		2 years 2 months 8 days
Weighted-average discount rate - operating leases	3.71%		3.71%
Shanghai [Member] | Extended Office Lease [Member]
Lessee, Lease, Description [Line Items]
Lease term	36 months		36 months
Lease inception date			Dec. 01, 2024
Expiration date			Nov. 30, 2027
Shenzhen [Member] | Extended Office Lease [Member]
Lessee, Lease, Description [Line Items]
Lease term	28 months		28 months
Lease inception date			Oct. 01, 2024
Expiration date			Jan. 31, 2027
Italy [Member] | Extended Office Lease [Member]
Lessee, Lease, Description [Line Items]
Lease term	22 months		22 months
Lease inception date			Jul. 01, 2024
Expiration date			Apr. 30, 2026
Santa Clara [Member] | Extended Office Lease [Member]
Lessee, Lease, Description [Line Items]
Lease term	24 months		24 months
Lease inception date			Oct. 01, 2024
Expiration date			Sep. 30, 2026