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Convertible Senior Notes - Components of Debt (Details) - USD ($)
$ in Thousands
Jul. 31, 2024
Jul. 31, 2023
Sep. 30, 2021
2027 Convertible Senior Notes      
Debt Instrument [Line Items]      
Principal amount     $ 1,000
Convertible Debt | 2026 Convertible Senior Notes      
Debt Instrument [Line Items]      
Principal amount $ 0 $ 750,000  
Non-cash interest expense converted to principal 0 47,569  
Unamortized debt discount (conversion feature) [1] 0 (132,769)  
Unamortized debt issuance costs [1] 0 (15,170)  
Net carrying amount 0 649,630  
Convertible Debt | 2027 Convertible Senior Notes      
Debt Instrument [Line Items]      
Principal amount 575,000 575,000  
Unamortized debt issuance costs [2] (4,927) (6,465)  
Net carrying amount $ 570,073 $ 568,535  
[1] Included in our consolidated balance sheets within convertible senior notes, net and amortized over the remaining life of the 2026 Notes using the effective interest rate method. The effective interest rate was 7.05%
[2] Included in our consolidated balance sheets within convertible senior notes, net and amortized over the remaining life of the 2027 Notes using the effective interest rate method. The effective interest rate is 0.52%.