Acquisitions - Schedule of Acquisition of Business (Details) $ in Thousands	12 Months Ended
Aug. 29, 2020 USD ($) Business	Aug. 31, 2019 USD ($) Business	Aug. 25, 2018 USD ($) Business
Business Acquisition [Line Items]
Goodwill	$ 424,844	$ 401,178	$ 397,422
Aggregate Information Relating to Acquisition of Businesses
Business Acquisition [Line Items]
Number of businesses acquired \| Business	8	6	9
Tangible assets acquired	$ 6,370	$ 322	$ 7,743
Goodwill	23,544	3,929	21,459
Customer contracts	12,697	1,344	11,751
Other intangible assets	594	118	900
Liabilities assumed	(1,872)		(95)
Acquisition of businesses	$ 41,333	$ 5,713	$ 41,758

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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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Amount of assets acquired at the acquisition date.

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

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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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 number of businesses acquired by the entity during the period.

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