Fair Value Measurements - Summary of Changes in the Estimated Fair Value of the Company's Level 3 Categorized Liability Classified Awards (Details) - Level 3
$ in Thousands
3 Months Ended
Nov. 30, 2021
USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Balance as of August 31, 2021 $ 1,588
Net change in the fair value (992)
Balance as of November 30, 2021 $ 596