Restructuring Costs (Summary Of Restructuring Related Liabilities) (Details) $ in Thousands	3 Months Ended
	Nov. 27, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Balance	$ 4,136
Additions	3,554
Payments and other adjustments	(5,537)
Balance	2,153
Consulting-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance	3,328
Payments and other adjustments	(3,328)
Severance and Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance	367
Additions	3,515
Payments and other adjustments	(1,787)
Balance	2,095
Other Exit Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance	441
Additions	39
Payments and other adjustments	(422)
Balance	$ 58