Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	May 31, 2022	Aug. 31, 2021
Property Plant And Equipment [Line Items]
Total property and equipment	$ 27,437	$ 26,562
Less accumulated depreciation and amortization	(14,697)	(12,257)
Property and equipment, net	12,740	14,305
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total property and equipment	10,323	10,572
Internal-Use Software
Property Plant And Equipment [Line Items]
Total property and equipment	9,636	8,230
Computer Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	5,179	4,849
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	1,818	2,304
Office Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	370	496
Assets Under Construction
Property Plant And Equipment [Line Items]
Total property and equipment	$ 111	$ 111