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Investments and Fair Value Measurements (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 26, 2022	Feb. 27, 2021	Aug. 28, 2021
Fair Value, Measurements, Recurring
Assets that fund deferred compensation
Domestic equity funds	$ 1,265,000		$ 1,265,000		$ 940,000
International equity funds	68,000		68,000		41,000
Fixed income funds	184,000		184,000		46,000
Total assets at fair value	1,517,000		1,517,000		1,027,000
Contingent consideration
Earnout liability	37,078,000		37,078,000
Total liabilities at fair value	37,078,000		37,078,000
Fair Value, Measurements, Recurring | Level 1
Assets that fund deferred compensation
Domestic equity funds	1,265,000		1,265,000		940,000
International equity funds	68,000		68,000		41,000
Fixed income funds	184,000		184,000		46,000
Total assets at fair value	1,517,000		1,517,000		1,027,000
Contingent consideration
Earnout liability	0		0
Total liabilities at fair value	0		0
Fair Value, Measurements, Recurring | Level 2
Assets that fund deferred compensation
Domestic equity funds	0		0		0
International equity funds	0		0		0
Fixed income funds	0		0		0
Total assets at fair value	0		0		0
Contingent consideration
Earnout liability	0		0
Total liabilities at fair value	0		0
Fair Value, Measurements, Recurring | Level 3
Assets that fund deferred compensation
Domestic equity funds	0		0		0
International equity funds	0		0		0
Fixed income funds	0		0		0
Total assets at fair value	0		0		$ 0
Contingent consideration
Earnout liability	37,078,000		37,078,000
Total liabilities at fair value	37,078,000		37,078,000
Fair Value, Nonrecurring
Contingent consideration
Asset impairment charges	$ 0	$ 0	$ 0	$ 0

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