Balance Sheet Components - Schedule of Other Long-Term Assets (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Property Plant And Equipment [Line Items]
Deposits, noncurrent	$ 2,707	$ 2,726
Internally developed software costs, net of amortization	16,071	14,521
Other assets, noncurrent	5,247	4,140
Other long-term assets	32,774	31,981
On-premises software
Property Plant And Equipment [Line Items]
Internally developed software costs, net of amortization	$ 8,749	$ 10,594