Leases - Schedule of Operating Lease Cost and Information Related to Operating Lease Right-of-use Assets, Net and Operating Lease Liabilities (Details) $ in Thousands	6 Months Ended
	Feb. 29, 2020 USD ($)
Lease cost
Operating lease costs including short-term lease expense and variable lease costs, which were immaterial in the period	$ 9,136
Operating cash flow impacts
Cash paid for amounts included in the measurement of operating lease liabilities	6,510
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	$ 4,398
Weighted-average remaining lease term - operating leases	4 years 7 months 6 days
Weighted-average discount rate - operating leases	2.86%