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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 | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Apr. 01, 2022 | Mar. 31, 2023 | Apr. 01, 2022
Stockholders' Equity And Stock-Based Compensation [Line Items] |  |  |  |
Total stock-based compensation expense | $ 29,827 | $ 27,699 | $ 61,067 | $ 60,355
Estimated benefit from income taxes | (4,497) | (4,412) | (9,199) | (9,531)
Total stock-based compensation, net of tax | 25,330 | 23,287 | 51,868 | 50,824
Stock options |  |  |  |
Stockholders' Equity And Stock-Based Compensation [Line Items] |  |  |  |
Total stock-based compensation expense | 2,008 | 2,313 | 4,413 | 5,618
Restricted stock units |  |  |  |
Stockholders' Equity And Stock-Based Compensation [Line Items] |  |  |  |
Total stock-based compensation expense | 26,544 | 23,686 | 54,096 | 51,406
Share-Based Payment Arrangement, Amount Capitalized | 300 |  | 700 |
Employee stock purchase plan |  |  |  |
Stockholders' Equity And Stock-Based Compensation [Line Items] |  |  |  |
Total stock-based compensation expense | $ 1,275 | $ 1,700 | $ 2,558 | $ 3,331

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + 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 (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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