Employee Stock Purchase and Stock Incentive Plans - Fair Value of Shares Vested (Details) - Restricted Stock Units (RSUs) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Oct. 01, 2021	Oct. 02, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested	$ 45,755	$ 46,869	$ 50,207
Service Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested	23,077	20,374	29,209
Service Market And Performance Conditions at Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested	22,678	$ 26,495	$ 20,998
1999 SIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of awards not yet recognized	$ 81,900
Exercisable options outstanding, weighted average remaining contractual life (years)	2 years 2 months 12 days

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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 (d)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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