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Revenue (Schedule Of Disaggregation Of Revenue) (Details) - USD ($)
$ in Thousands

3 Months Ended

12 Months Ended

Aug. 31, 2019

^[1]

Jun. 01, 2019

Mar. 02, 2019

Dec. 01, 2018

Sep. 01, 2018

Jun. 02, 2018

Mar. 03, 2018

^[2]

Dec. 02, 2017

Aug. 31, 2019

Sep. 01, 2018

Sep. 02, 2017

Disaggregation of Revenue [Line Items]

Net sales

$ 842,670

$ 866,546

$ 823,004

$ 831,597

$ 837,985

$ 828,345

$ 768,987

$ 768,561

$ 3,363,817

$ 3,203,878

$ 2,887,744

Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

100.00%

Net Sales [Member] | Geographic Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Net sales

$ 3,363,817

Concentration risk, percentage

100.00%

Manufacturing Heavy [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

48.00%

Manufacturing Light [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

22.00%

Government [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

8.00%

Retail/Wholesale [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

6.00%

Commercial Services [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

4.00%

Other Customers [Member] | Net Sales [Member] | Customer Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Concentration risk, percentage

^[3]

12.00%

United States [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Net sales

$ 3,243,026

Concentration risk, percentage

96.00%

UK [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Net sales

$ 56,506

Concentration risk, percentage

2.00%

Canada [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Net sales

$ 41,126

Concentration risk, percentage

1.00%

Mexico [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]

Disaggregation of Revenue [Line Items]

Net sales

$ 23,159

Concentration risk, percentage

1.00%

[1]	In the fourth quarter of fiscal 2019, the Company recorded $6,725 of severance and separation benefits charges and other related costs associated with workforce reduction and increased performance management. The net income per share impact from these charges were $0.09 in the fourth quarter of fiscal 2019.
[2]	In the second quarter of fiscal 2018, the Company recorded a net tax benefit of $41,199 due to the revaluation of its net deferred tax liabilities primarily related to the lower federal corporate tax rate, partially offset by the lower federal benefit for state taxes and the change from a worldwide tax system to a territorial tax system, and a net tax benefit of $16,929 attributable to the lower effective tax rate required to bring our first half into alignment with the expected full-year rate.
[3]	The other category primarily includes individual customer and small business net sales not assigned to a specific industry classification.

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