Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Nov. 30, 2021
Aug. 31, 2021
Property Plant And Equipment [Line Items]    
Total property and equipment $ 27,445 $ 26,562
Less accumulated depreciation and amortization (13,338) (12,257)
Property and equipment, net 14,107 14,305
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Total property and equipment 10,535 10,572
Internal-Use Software    
Property Plant And Equipment [Line Items]    
Total property and equipment 8,676 8,230
Computer Equipment    
Property Plant And Equipment [Line Items]    
Total property and equipment 5,346 4,849
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Total property and equipment 2,293 2,304
Office Equipment    
Property Plant And Equipment [Line Items]    
Total property and equipment 484 496
Assets Under Construction    
Property Plant And Equipment [Line Items]    
Total property and equipment $ 111 $ 111