Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 11,012 $ 18,086
Stock-based compensation related to internal-use software development 100 100
Unrecognized compensation cost, stock options 79,200  
Cost of revenue    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 644 1,382
Sales and marketing    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 3,819 6,376
Research and development    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 2,795 4,520
General and administrative    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 3,754 $ 5,808
Options to purchase common stock    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Unrecognized compensation cost, period for recognition (in years) 2 years 7 months 28 days