Revenue (Schedule Of Disaggregation Of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 03, 2022	Nov. 27, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 957,745	$ 848,547
Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%
Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 957,745	$ 848,547
Concentration risk, percentage	100.00%	100.00%
Manufacturing Heavy [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	48.00%	49.00%
Manufacturing Light [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	21.00%	21.00%
Retail/Wholesale [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	8.00%	7.00%
Government [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	7.00%	8.00%
Commercial Services [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	4.00%	4.00%
Other Customers [Member] | Net Sales [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	12.00%	11.00%
US [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 910,068	$ 799,075
Concentration risk, percentage	95.00%	94.00%
Mexico [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 21,110	$ 22,615
Concentration risk, percentage	2.00%	3.00%
United Kingdom [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 944,760	$ 833,952
Concentration risk, percentage	99.00%	98.00%
Canada [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 13,582	$ 12,262
Concentration risk, percentage	2.00%	1.00%
Other foreign countries [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 12,985	$ 14,595
Concentration risk, percentage	1.00%	2.00%