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Revenue - Additional Information (Detail) - USD ($)
$ in Millions
Sep. 27, 2025
Sep. 28, 2024
Other Current Liabilities [Member]    
Disaggregation of Revenue [Line Items]    
Deferred revenue liabilities, current $ 17.7 $ 29.6
Other Noncurrent Liabilities [Member]    
Disaggregation of Revenue [Line Items]    
Deferred revenue liabilities, noncurrent $ 13.8 $ 12.0