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Income Taxes - Schedule of Reconciliation of the Statutory U.S. Federal Income Tax Rate and the Benefit from Income Taxes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Tax at statutory federal rate $ 20,763 $ 17,884 $ 13,139
State and local income taxes, net of federal benefit $ 1,883 2,782 3,792
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration] stpr:IL, stpr:MA, stpr:NJ, stpr:NY    
U.S. tax on foreign earnings   17,389 14,569
Foreign rate effects/difference   2,022 819
Nondeductible expenses   828 701
Induced conversion expense   2,129 0
Change in reserve for unrecognized tax benefits   7,880 7,916
Stock-based compensation $ (6,448) 1,032 3,555
Change in valuation allowance, including the effect of tax rate change   (203,542) (102,573)
Other   15 (448)
Effect of cross-border tax laws:      
Global intangible low-taxed income 3,498    
Subpart F income inclusion 1,473    
Tax credits:      
Research and development tax credits (22,258) (7,880) (7,916)
Nontaxable or nondeductible items:      
Non-deductible stock-based compensation 12,626    
Other 1,041    
Changes in unrecognized tax benefits (32,703)    
Other Adjustments 43    
Total benefit from income taxes $ (16,654) $ (159,461) $ (66,446)
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Tax at statutory federal rate 21.00% 21.00% 21.00%
State and local income taxes, net of federal benefit 1.90%    
Effect of cross-border tax laws:      
Global intangible low-taxed income 3.50%    
Subpart F income inclusion 1.50%    
Tax credits:      
Research and development tax credits (22.50%)    
Nontaxable or nondeductible items:      
Non-deductible stock-based compensation 12.80%    
Other 1.10%    
Stock-based compensation (6.50%)    
Changes in unrecognized tax benefits (33.10%)    
Other Adjustments 0.00%    
Total benefit from income taxes (16.80%)    
Japan      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Foreign rate effects/difference $ 1,544    
Other $ (498)    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Foreign tax effects 1.60%    
Other (0.50%)    
United Kingdom      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Foreign rate effects/difference $ 2,314    
Stock-based compensation (2,065)    
Intra-group transfer of intellectual property (1,318)    
Other $ (99)    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Foreign tax effects 2.30%    
Intra-group transfer of intellectual property (1.30%)    
Other (0.10%)    
Nontaxable or nondeductible items:      
Stock-based compensation (2.10%)    
Netherlands      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Other $ 57    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Other 0.10%    
Other foreign jurisdictions      
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Foreign rate effects/difference $ 320    
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Foreign tax effects 0.30%