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Stockholders' Equity And Stock-Based Compensation (Stock Repurchase) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				12 Months Ended
	Sep. 26, 2025	Jun. 27, 2025	Mar. 28, 2025	Dec. 27, 2024	Sep. 26, 2025	Sep. 27, 2024	Sep. 29, 2023	Aug. 31, 2024	Aug. 31, 2022	Feb. 28, 2022	Jul. 29, 2021	Jul. 31, 2019	Jul. 25, 2018	Jan. 25, 2017	Oct. 31, 2014	Feb. 29, 2012	Jul. 31, 2011	Jul. 31, 2010	Nov. 30, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Repurchase Program, Authorized, Amount	$ 3,300,000				$ 3,300,000														$ 250,000
Shares repurchased (in shares)	479,361	526,033	428,565	186,322	1,620,281
Cost	$ 35,002	$ 39,991	$ 34,999	$ 15,000	$ 124,992	$ 160,001	$ 149,276
Average Price Paid per Share (in dollars per share)	$ 73.01	$ 76.02	$ 81.67	$ 80.51	$ 73.01
Additional Stock Approved [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Repurchase Program, Authorized, Amount								$ 350,000	$ 350,000	$ 250,000	$ 350,000	$ 350,000	$ 350,000	$ 200,000	$ 200,000	$ 100,000	$ 250,000	$ 300,000

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