Leases - Supplemental Cash Flow and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Leases [Abstract]
Operating cash flows from operating leases	$ 11,353	$ 11,860	$ 36,910	$ 34,234
Financing cash flows from finance leases	303	0	626	0
Lease liabilities arising from obtaining right-of-use assets from operating leases	1,067	0	5,017	13,538
Lease liabilities arising from obtaining right-of-use assets from finance leases	$ 656	$ 253	$ 4,529	$ 342