v3.26.1
Stockholders' Equity - Share-based awards available for grant (Details) - shares
 6 Months Ended 12 Months Ended
Jul. 31, 2022
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Shares available for grant, beginning balance (in shares)   25,147,000 27,317,000 19,026,000
Additional shares authorized (in shares)       12,200,000
Restricted stock units granted (in shares)   (21,070,000) (8,812,000) (9,782,000)
Options granted (in shares)   (69,000) (287,000) (326,000)
Share-based awards canceled/forfeited/expired (in shares)   7,272,000 6,929,000 6,199,000
Shares available for grant, ending balance (in shares)   11,280,000 25,147,000 27,317,000
Pool shares reduced for each share granted (in shares)   2.3    
Pool shares increased for each share forfeited (in shares) 2.3 2.3    
Stock Options | Restated 2005 Plan        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Shares available for grant, ending balance (in shares)   11,300,000    
Pool shares reduced for each share granted (in shares)   1