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Restructuring (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 26, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 15,007 | $ 6,384 | $ 47,061
Impairment loss on internally developed software | 0 | 0 | $ 16,225
April 2024 Restructuring Plan | Minimum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount |  | 3,000 |
April 2024 Restructuring Plan | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount | 11,000 |  |
September 2023 Restructuring Plan | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount |  | 40,000 |
June 2023 Restructuring Plan | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount |  | 20,000 |
November 2024 Restructuring Plan | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount | 20,000 |  |
September 2025 Restructuring Plan | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Effect on Future Earnings, Amount | 20,000 |  |
Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 11,624 | 6,413 |
Employee Severance [Member] | April 2024 Restructuring Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | 4,600 |
Employee Severance [Member] | September 2023 Restructuring Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | 7,400 |
Employee Severance [Member] | November 2024 Restructuring Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 9,200 |  |
Employee Severance [Member] | September 2025 Restructuring Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 6,100 |  |
Restructuring and Related Cost, Expected Cost Remaining | 10,000 |  |
Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ (3,383) | $ 29 |

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