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Restructuring and Other Charges - Schedule of Restructuring Components and Other Charges (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 27, 2025 | Sep. 28, 2024
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | $ 33,490 | $ 11,853
Total cash charges |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | 21,570 | 9,649
Employee-related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | 19,486 | 7,371
Other restructuring costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | 2,084 | 2,278
Total non-cash charges |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | 11,920 | 2,204
Stock-based awards |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | 4,687 | 0
Asset write-offs |  |
Restructuring Cost and Reserve [Line Items] |  |
Total restructuring and other charges | $ 7,233 | $ 2,204

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