Employee Stock Plans - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Stock-based compensation | $ 144,901 | $ 114,261 | $ 97,177 |
| Capitalized stock-based compensation expense | 2,073 | 2,259 | 2,152 |
| Total stock-based compensation expense | 146,974 | 116,520 | 99,329 |
| Cost of revenue | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Stock-based compensation | 4,829 | 4,022 | 3,585 |
| Sales and marketing | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Stock-based compensation | 44,017 | 38,168 | 31,198 |
| Research and development | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Stock-based compensation | 56,816 | 43,004 | 38,962 |
| General and administrative | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Stock-based compensation | $ 39,239 | $ 29,067 | $ 23,432 |