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Leases - Sale, Leaseback Transactions (Details) $ in Thousands | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 05, 2020 USD ($) | Jan. 19, 2020 USD ($) sale_leasebackTransaction | Oct. 03, 2021 USD ($) sale_leasebackTransaction | Sep. 27, 2020 USD ($) officeBuilding sale_leasebackTransaction | Sep. 29, 2019 USD ($)
Sale Leaseback Transaction [Line Items] |  |  |  |  |
Number of sales - leaseback transactions completed | sale_leasebackTransaction |  | 1 | 2 | 2 |
Proceeds from the sale and leaseback of assets |  |  | $ 3,884 | $ 19,828 | $ 4,447
Notice period for termination of lease without penalty |  |  |  | 90 days |
Restaurant |  |  |  |  |
Sale Leaseback Transaction [Line Items] |  |  |  |  |
Proceeds from the sale and leaseback of assets | $ 2,400 |  | 3,900 |  |
Gain (loss) on sale and leaseback transaction | $ (100) |  | $ 100 |  |
Initial term of operating lease | 17 years |  | 20 years |  |
Multi-tenant Commercial Property |  |  |  |  |
Sale Leaseback Transaction [Line Items] |  |  |  |  |
Proceeds from the sale and leaseback of assets |  | $ 17,400 |  |  |
Gain (loss) on sale and leaseback transaction |  | $ (200) |  |  |
Initial term of operating lease |  | 20 years |  |  |
Principal Executive Offices |  |  |  |  |
Sale Leaseback Transaction [Line Items] |  |  |  |  |
Number of sales - leaseback transactions completed | officeBuilding |  |  |  | 1 |
Proceeds from the sale and leaseback of assets |  |  |  | $ 20,600 |
Gain (loss) on sale and leaseback transaction |  |  |  | $ 10,800 |
Initial term of operating lease |  |  |  | 18 months |

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- Definition Proceeds From Assets Held For Sale and Leaseback + References No definition available. + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Amount of gain (loss) on sale and leaseback transaction from transfer of asset accounted for as sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 40 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121606570&loc=SL77919786-209982 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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