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Business Segments - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2021 USD ($)	Mar. 27, 2020 USD ($)	Apr. 02, 2021 USD ($) segment nationalPark	Mar. 27, 2020 USD ($) reporting_Unit
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Possessory interest in National Park service sites | nationalPark			1
Goodwill impairment	$ 0	$ 198,600	$ 0	$ 198,600
FSS International
Segment Reporting Information [Line Items]
Goodwill impairment		$ 198,600		$ 198,600
Number of reporting units | reporting_Unit				1
Cost of services provided | FSS United States
Segment Reporting Information [Line Items]
Proceeds from recovery of investment			$ 10,000	$ 15,300
Sales | Food Services | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage			73.00%
Sales | Facilities & Other | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage			27.00%

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