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Convertible Senior Notes - Interest Expense Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Debt Instrument [Line Items]
Non-cash interest expense	$ 18,550	$ 19,757	$ 19,270
Convertible Debt | 2023 Convertible Senior Notes
Debt Instrument [Line Items]
Interest expense related to amortization of debt issuance costs	0	248	844
Convertible Debt | 2026 Convertible Senior Notes
Debt Instrument [Line Items]
Interest expense related to amortization of debt discount	35,955	36,668	34,180
Interest expense related to amortization of debt issuance costs	4,107	4,189	3,906
Non-cash interest expense	18,550	19,757	19,270
Interest Expense related to Conversion of 2026 Notes attributable to debt discount and issuance costs	107,877	0	0
Total interest expense	166,489	60,614	57,356
Convertible Debt | 2027 Convertible Senior Notes
Debt Instrument [Line Items]
Contractual Interest Expense	1,352	1,720	1,229
Interest expense related to amortization of debt issuance costs	1,538	1,530	1,302
Total interest expense	$ 2,890	$ 3,250	$ 2,531

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