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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
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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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