Acquisitions - Schedule of Acquisition of Business (Details) $ in Thousands	12 Months Ended
Aug. 28, 2021 USD ($) Business	Aug. 29, 2020 USD ($) Business	Aug. 31, 2019 USD ($) Business
Business Acquisition [Line Items]
Goodwill	$ 429,538	$ 424,844	$ 401,178
Aggregate Information Relating to Acquisition of Businesses
Business Acquisition [Line Items]
Number of businesses acquired \| Business	8	8	6
Tangible assets acquired	$ 812	$ 6,370	$ 322
Goodwill	4,533	23,544	3,929
Customer contracts	3,219	12,697	1,344
Other intangible assets	179	594	118
Liabilities assumed		(1,872)
Acquisition of businesses	$ 8,743	$ 41,333	$ 5,713

Business combination recognized identifiable assets acquired and liabilities assumed customer contracts.

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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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