Fair Value Measurements - Summary of Financial Assets and Liabilities Measured and Recorded at Fair Value on Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($)
$ in Thousands
Nov. 30, 2021
Aug. 31, 2021
Assets:    
Total assets $ 220,055 $ 191,981
Liabilities:    
Total liabilities 1,514 8,498
Cash and Cash Equivalents | Money Market Funds    
Assets:    
Total assets 124,059  
Level 1    
Assets:    
Total assets 124,059  
Liabilities:    
Total liabilities 918 1,448
Level 1 | Cash and Cash Equivalents | Money Market Funds    
Assets:    
Total assets 124,059  
Level 2    
Assets:    
Total assets 95,996 191,981
Level 3    
Liabilities:    
Total liabilities 596 7,050
Liability Classified Awards    
Liabilities:    
Total liabilities 1,514 3,036
Liability Classified Awards | Level 1    
Liabilities:    
Total liabilities 918 1,448
Liability Classified Awards | Level 3    
Liabilities:    
Total liabilities 596 1,588
Contingent Earnout Liability    
Liabilities:    
Total liabilities   5,462
Contingent Earnout Liability | Level 3    
Liabilities:    
Total liabilities   5,462
U S Government Agency Securities | Short Term Investments    
Assets:    
Total assets 95,996 191,981
U S Government Agency Securities | Level 2 | Short Term Investments    
Assets:    
Total assets $ 95,996 $ 191,981