v3.26.1
Fair Value Measurements - Fair Value of Financial Assets and Liabilities (Details) - USD ($)
$ in Thousands
Apr. 30, 2026
Jul. 31, 2025
Financial Assets:    
Short-term investments: $ 1,299,091 $ 1,223,234
Recurring    
Financial Assets:    
Total measured at fair value 1,653,573 1,629,767
Cash 364,330 362,969
Total cash, cash equivalents and short-term investments 2,017,903 1,992,736
Recurring | Corporate bonds    
Financial Assets:    
Short-term investments: 743,537 647,074
Recurring | Money market funds    
Financial Assets:    
Cash equivalents: 351,889 371,762
Recurring | Commercial paper    
Financial Assets:    
Cash equivalents: 2,593 13,068
Short-term investments: 50,389 163,055
Recurring | U.S. government securities    
Financial Assets:    
Cash equivalents:   21,703
Short-term investments: 505,165 413,105
Recurring | Convertible Note Receivable    
Financial Assets:    
Assets, Noncurrent, Total 5,460 5,460
Recurring | Level I    
Financial Assets:    
Total measured at fair value 351,889 371,762
Recurring | Level I | Corporate bonds    
Financial Assets:    
Short-term investments: 0 0
Recurring | Level I | Money market funds    
Financial Assets:    
Cash equivalents: 351,889 371,762
Recurring | Level I | Commercial paper    
Financial Assets:    
Cash equivalents: 0 0
Short-term investments: 0 0
Recurring | Level I | U.S. government securities    
Financial Assets:    
Cash equivalents:   0
Short-term investments: 0 0
Recurring | Level I | Convertible Note Receivable    
Financial Assets:    
Assets, Noncurrent, Total 0 0
Recurring | Level II    
Financial Assets:    
Total measured at fair value 1,301,684 1,258,005
Recurring | Level II | Corporate bonds    
Financial Assets:    
Short-term investments: 743,537 647,074
Recurring | Level II | Money market funds    
Financial Assets:    
Cash equivalents: 0 0
Recurring | Level II | Commercial paper    
Financial Assets:    
Cash equivalents: 2,593 13,068
Short-term investments: 50,389 163,055
Recurring | Level II | U.S. government securities    
Financial Assets:    
Cash equivalents:   21,703
Short-term investments: 505,165 413,105
Recurring | Level II | Convertible Note Receivable    
Financial Assets:    
Assets, Noncurrent, Total 0 0
Recurring | Level III    
Financial Assets:    
Total measured at fair value 0 0
Recurring | Level III | Corporate bonds    
Financial Assets:    
Short-term investments: 0 0
Recurring | Level III | Money market funds    
Financial Assets:    
Cash equivalents: 0 0
Recurring | Level III | Commercial paper    
Financial Assets:    
Cash equivalents: 0 0
Short-term investments: 0 0
Recurring | Level III | U.S. government securities    
Financial Assets:    
Cash equivalents:   0
Short-term investments: 0 0
Recurring | Level III | Convertible Note Receivable    
Financial Assets:    
Assets, Noncurrent, Total $ 5,460 $ 5,460