Equity Plans - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 26, 2021	Nov. 27, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 9,775	$ 11,088
Cost of Sales
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	1,731	838
Research & Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	1,540	778
Selling, General and Administrative Expenses
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 6,504	$ 9,472