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Stockholders' Equity And Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense By Plan) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 29, 2023	Dec. 30, 2022
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation	$ 31,894	$ 31,240
Estimated benefit from income taxes	(4,999)	(4,702)
Total stock-based compensation, net of tax	26,895	26,538
Stock options
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation	2,125	2,405
Restricted stock units
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation	29,016	27,552
Share-Based Payment Arrangement, Amount Capitalized	300
Employee stock purchase plan
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation	$ 753	$ 1,283

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Stockholders' Equity And Stock-Based Compensation [Line Items]

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1

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

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