Leases - Schedule of Impairment Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Impairment of long-lived assets	$ 8,552	$ 0	$ 0
Cost of revenue
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Impairment of long-lived assets	2,528	0	0
Sales and marketing
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Impairment of long-lived assets	2,272	0	0
Research and development
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Impairment of long-lived assets	2,052	0	0
General and administrative
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Impairment of long-lived assets	$ 1,700	$ 0	$ 0