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Employee Stock Purchase and Stock Incentive Plans - Number of Shares of Restricted Stock and Restricted Stock Units Issued Under the 1999 Plans (Details) - shares | 12 Months Ended
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Sep. 30, 2022 | Oct. 01, 2021 | Oct. 02, 2020
1999 ODSP |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award number of shares, non-fungible share basis (in shares) | 1.92 |  |
1999 ODSP | Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted stock and restricted stock units outstanding (in shares) | 0 |  |
1999 ODSP | Restricted Stock Units (RSUs) | Service Condition |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted stock and restricted stock units issued (in shares) | 13,785 | 17,680 | 18,100
Restricted stock and restricted stock units outstanding (in shares) | 57,133 |  |
1999 SIP | Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted stock and restricted stock units issued (in shares) | 818 | 0 | 0
Restricted stock and restricted stock units canceled (in shares) | 0 | 0 | 34,417
Restricted stock and restricted stock units outstanding (in shares) | 252 |  |
1999 SIP | Restricted Stock Units (RSUs) | Service Condition |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted stock and restricted stock units issued (in shares) | 290,582 | 380,722 | 351,670
Restricted stock and restricted stock units canceled (in shares) | 57,366 | 201,967 | 183,099
Restricted stock and restricted stock units outstanding (in shares) | 732,945 |  |
1999 SIP | Restricted Stock Units (RSUs) | Service Market And Performance Conditions at Target |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted stock and restricted stock units issued (in shares) | 176,470 | 181,132 | 202,792
Restricted stock and restricted stock units canceled (in shares) | 31,966 | 218,520 | 160,781
Restricted stock and restricted stock units outstanding (in shares) | 585,099 |  |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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