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Business Segments and Geographic Information - Additional Information (Detail)
3 Months Ended 12 Months Ended
Dec. 25, 2021
USD ($)
Dec. 26, 2020
USD ($)
Sep. 25, 2021
Segment
Segment Reporting Disclosure [Line Items]      
Number of reportable segments | Segment     4
Revenues $ 1,471,100,000 $ 1,609,800,000  
Intersegment      
Segment Reporting Disclosure [Line Items]      
Revenues $ 0 $ 0