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Equity - Share-based Compensation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2025 | Jan. 31, 2024 | Jan. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount |  |  |
Stock-based compensation, net of amounts capitalized | $ 1,479,314 | $ 1,168,015 | $ 861,533
Capitalized stock-based compensation | 38,493 | 48,830 | 29,417
Total stock-based compensation | 1,517,807 | 1,216,845 | 890,950
Cost of revenue |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount |  |  |
Stock-based compensation, net of amounts capitalized | 142,163 | 123,363 | 106,302
Sales and marketing |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount |  |  |
Stock-based compensation, net of amounts capitalized | 331,807 | 299,657 | 246,811
Research and development |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount |  |  |
Stock-based compensation, net of amounts capitalized | 852,027 | 644,928 | 407,524
General and administrative |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount |  |  |
Stock-based compensation, net of amounts capitalized | $ 153,317 | $ 100,067 | $ 100,896

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