Restructuring Costs (Summary Of Restructuring Related Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 28, 2021	Aug. 29, 2020
Restructuring Cost and Reserve [Line Items]
Balance	$ 10,990	$ 6,044
Additions	16,164	16,725
Payments and other adjustments	(23,018)	(11,779)
Balance	4,136	10,990
Consulting-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance	4,063
Additions	8,615	6,583
Payments and other adjustments	(9,350)	(2,520)
Balance	3,328	4,063
Separation and Severance Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance	6,927	6,044
Additions	4,267	10,142
Payments and other adjustments	(10,827)	(9,259)
Balance	367	6,927
Other Exit Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance
Additions	3,282
Payments and other adjustments	(2,841)
Balance	$ 441