XML 88 R64.htm IDEA: XBRL DOCUMENT v3.21.2
Leases - Other Lease Information (Details)
Jul. 31, 2021
Jul. 31, 2020
Leases [Abstract]    
Weighted-average remaining lease term for operating leases 6 years 9 months 18 days 5 years 6 months
Weighted-average discount rate for operating leases 2.30% 3.10%