Revenue and Deferred Revenue - Components of Deferred Revenue (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Jan. 31, 2022
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 17,734	$ 16,673
Less: current deferred revenue	17,686	16,600
Non-current deferred revenue included in other long-term liabilities	48	73
Subscription and Services
Deferred Revenue Arrangement [Line Items]
Deferred revenue	17,671	16,614
Product and Other
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 63	$ 59