Stockholders' Equity And Stock-Based Compensation (RSU Vest Date Fair Value) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 27, 2024	Sep. 29, 2023	Sep. 30, 2022
Stockholders' Equity And Stock-Based Compensation [Abstract]
Restricted stock units - vest date fair value	$ 113,909	$ 92,843	$ 106,919

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration