Business Combination (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 02, 2018	Jun. 02, 2018	Sep. 02, 2017
Business Acquisition [Line Items]
Non-recurring transaction and integration costs		$ 682
Goodwill	$ 672,785	$ 672,785	$ 633,728
All Integrated Solutions ("AIS") [Member]
Business Acquisition [Line Items]
Interest acquired	100.00%	100.00%
Acquisition date		Apr. 30, 2018
Payments to acquire business		$ 86,693
Acquired intangible assets	$ 23,200	23,200
Customer relationships	21,000	21,000
Finite lived trademark	2,200	2,200
Goodwill	39,574	39,574
Tax deductible goodwill	4,900	4,900
Revenue of acquiree	6,725	6,725
Loss of acquiree	$ 1,719	$ 1,719
All Integrated Solutions ("AIS") [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired intangible assets useful life		10 years
All Integrated Solutions ("AIS") [Member] \| Trademark [Member]
Business Acquisition [Line Items]
Acquired intangible assets useful life		5 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Name Accounting Standards Codification
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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

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Gross carrying amount before accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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