Operating Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 31, 2021	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Leases [Abstract]
Cash payments for operating leases		$ 3,945	$ 3,343	$ 2,148
Operating Lease liability difference amount	$ 9,500	$ 11,289	$ 1,196	$ 5,856