Summary of Business and Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Jan. 31, 2026 USD ($) reporting_unit	Jan. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)
Summary Of Business And Significant Accounting Policies [Line Items]
Restricted cash	$ 10,904,000	$ 12,037,000
Internal-use software development costs capitalized	$ 10,000,000.0	14,900,000	$ 8,100,000
Number of reporting units | reporting_unit	1
Impairment charges for acquired intangible assets	$ 0	0	0
Advertising costs	$ 56,900,000	$ 50,800,000	$ 56,500,000
Revenue from Contract with Customer | Professional Services Fees Concentration Risk | Service
Summary Of Business And Significant Accounting Policies [Line Items]
Percentage of revenue (less than)	1.00%
Software
Summary Of Business And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Minimum
Summary Of Business And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Maximum
Summary Of Business And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Maximum | Leasehold improvements
Summary Of Business And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	5 years