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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		9 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation expense	$ 29,224	$ 27,608	$ 90,291	$ 87,963
Estimated benefit from income taxes	(4,493)	(4,280)	(13,692)	(13,811)
Total stock-based compensation, net of tax	24,731	23,328	76,599	74,152
Stock options
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation expense	2,059	2,321	6,472	7,939
Restricted stock units
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation expense	26,211	23,715	80,307	75,121
Share-Based Payment Arrangement, Amount Capitalized	400		1,100
Employee stock purchase plan
Stockholders' Equity And Stock-Based Compensation [Line Items]
Total stock-based compensation expense	$ 954	$ 1,572	$ 3,512	$ 4,903

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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

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-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(ii)
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