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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Summary of business and significant accounting policies.

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Summary of Business and Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Jan. 31, 2024 USD ($) vote reporting_unit	Jan. 31, 2023 USD ($)	Jan. 31, 2022 USD ($)
Summary Of Business And Significant Accounting Policies [Line Items]
Restricted cash from international employee stock sales	$ 6,874,000	$ 13,141,000
Capitalized software development costs	8,100,000	18,000,000	$ 20,200,000
Impairment of long-lived assets	$ 0	0	0
Number of reporting units \| reporting_unit	1
Advertising expense	$ 56,500,000	$ 64,700,000	$ 40,900,000
Number of operating segments \| vote	1
Revenue from Contract with Customer \| Professional Services Fees Concentration Risk \| Service
Summary Of Business And Significant Accounting Policies [Line Items]
Percentage of revenue (as a percent)	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