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Investments and Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Nov. 27, 2021	Nov. 28, 2020	Aug. 28, 2021
Fair Value, Measurements, Recurring
Assets that fund deferred compensation
Domestic equity funds	$ 1,347,000		$ 940,000
International equity funds	76,000		41,000
Fixed income funds	195,000		46,000
Total assets at fair value	1,618,000		1,027,000
Contingent consideration
Earnout liability	30,560,000
Total liabilities at fair value	30,560,000
Fair Value, Measurements, Recurring | Level 1
Assets that fund deferred compensation
Domestic equity funds	1,347,000		940,000
International equity funds	76,000		41,000
Fixed income funds	195,000		46,000
Total assets at fair value	1,618,000		1,027,000
Contingent consideration
Earnout liability	0
Total liabilities at fair value	0
Fair Value, Measurements, Recurring | Level 2
Assets that fund deferred compensation
Domestic equity funds	0		0
International equity funds	0		0
Fixed income funds	0		0
Total assets at fair value	0		0
Contingent consideration
Earnout liability	0
Total liabilities at fair value	0
Fair Value, Measurements, Recurring | Level 3
Assets that fund deferred compensation
Domestic equity funds	0		0
International equity funds	0		0
Fixed income funds	0		0
Total assets at fair value	0		$ 0
Contingent consideration
Earnout liability	30,560,000
Total liabilities at fair value	30,560,000
Fair Value, Nonrecurring
Contingent consideration
Asset impairment charges	$ 0	$ 0

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