Restructuring and Other Costs - Summary of Restructuring Related Liabilities (Details) - USD ($)	12 Months Ended
	Sep. 02, 2023	Sep. 03, 2022
Restructuring Reserve [Roll Forward]
Beginning balance	$ 2,714,000	$ 4,136,000
Additions	7,533,000	14,077,000
Payments and other adjustments	(9,110,000)	(15,499,000)
Ending balance	1,137,000	2,714,000
Consulting-related costs
Restructuring Reserve [Roll Forward]
Beginning balance	840,000	3,328,000
Additions	4,939,000	8,188,000
Payments and other adjustments	(5,679,000)	(10,676,000)
Ending balance	100,000	840,000
Associate severance and separation costs
Restructuring Reserve [Roll Forward]
Beginning balance	1,874,000	367,000
Additions	2,594,000	5,753,000
Payments and other adjustments	(3,431,000)	(4,246,000)
Ending balance	1,037,000	1,874,000
Other exit-related costs
Restructuring Reserve [Roll Forward]
Beginning balance	0	441,000
Additions	0	136,000
Payments and other adjustments	0	(577,000)
Ending balance	$ 0	$ 0