Contingent Liabilities, Commitments and Legal Matters (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022	Jul. 31, 2022
Loss Contingencies [Line Items]
Standby repurchase obligations amount	$ 4,444,812		$ 4,444,812		$ 4,308,524
Term of commitments			18 months
Repurchase and guarantee reserve balances	13,701		$ 13,701		$ 11,346
Selling, General and Administrative Expenses
Loss Contingencies [Line Items]
Expense recorded related to product recall costs	$ 0	$ 0	$ 0	$ 32,125