Segment Information - Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	$ 193,141	$ 163,041
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	185,282	152,859
Rest of the world
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	$ 7,859	$ 10,182