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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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