Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease, cost	$ 43,300	$ 42,600	$ 39,100
Finance lease, cost	2,400	700
Impairment loss	597	1,420	3,002
Right-of-use asset, impairment loss		500	1,800
Impairment of leasehold		$ 900	$ 1,200
Operating lease early exit expenses	600
Lease not yet commenced, undiscounted amount	$ 7,300
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Lease not yet commenced, term of contract	3 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	8 years
Lease not yet commenced, term of contract	8 years