Income Taxes - Schedule of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Current:
U.S. federal tax	$ 1,705	$ 1,440	$ 1,290
U.S. state taxes	256	3	2
Non-U.S. foreign taxes	1,019	1,540	1,561
Current income tax provision	2,980	2,983	2,853
Deferred:
U.S. federal tax	(432)	182	(7,077)
U.S. state taxes	0	0	0
Non-U.S. foreign taxes	(65)	(1)	119
Deferred income tax provision	(497)	181	(6,958)
Provision (benefit) for income taxes	$ 2,483	$ 3,164	$ (4,105)