Leases - Average Lease Terms And Discounts (Details)	May 31, 2022	Aug. 31, 2021
Weighted average remaining lease term in years:
Operating leases	10 years	10 years 3 months 18 days
Finance leases	19 years 2 months 12 days	20 years 2 months 12 days
Weighted average discount rate:
Operating leases	4.77%	4.77%
Finance leases	5.18%	5.18%