Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Advertising expense	$ 72,300	$ 75,000	$ 79,400
Restricted cash	418	136	0
Allowance for doubtful accounts	1,600	1,600
Asset impairment charges	$ 30,716	$ 6,785	$ 5,009
Minimum
Debt Securities, Available-for-sale [Line Items]
Marketable securities, term (in months)	3 months
Property and equipment, useful life (in years)	2 years
Maximum
Debt Securities, Available-for-sale [Line Items]
Marketable securities, term (in months)	37 months
Property and equipment, useful life (in years)	5 years