Net Income Per Share - Calculation of Net Income Per Share Footnotes (Detail)	Apr. 30, 2022 $ / shares
2023 Notes \| Common Stock
Earnings Per Share Diluted
Stock prices	$ 193.65
2023 Notes \| Warrant
Earnings Per Share Diluted
Stock prices	309.84
2024 Notes \| Common Stock
Earnings Per Share Diluted
Stock prices	211.40
2024 Notes \| Warrant
Earnings Per Share Diluted
Stock prices	$ 338.24

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