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	May 31, 2022	Aug. 31, 2021
Assets:
Total assets	$ 300,078	$ 191,981
Liabilities:
Total liabilities	231	8,498
Cash and Cash Equivalents | Money Market Funds
Assets:
Total assets	44,575
Level 1
Assets:
Total assets	300,078
Liabilities:
Total liabilities	58	1,448
Level 1 | Cash and Cash Equivalents | Money Market Funds
Assets:
Total assets	44,575
Level 3
Liabilities:
Total liabilities	173	7,050
Level 2
Assets:
Total assets		191,981
Liability Classified Awards
Liabilities:
Total liabilities	231	3,036
Liability Classified Awards | Level 1
Liabilities:
Total liabilities	58	1,448
Liability Classified Awards | Level 3
Liabilities:
Total liabilities	173	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 | Cash and Cash Equivalents
Assets:
Total assets	31,992
U S Government Agency Securities | Short Term Investments
Assets:
Total assets	223,511	191,981
U S Government Agency Securities | Level 1 | Cash and Cash Equivalents
Assets:
Total assets	31,992
U S Government Agency Securities | Level 1 | Short Term Investments
Assets:
Total assets	$ 223,511
U S Government Agency Securities | Level 2 | Short Term Investments
Assets:
Total assets		$ 191,981