v3.26.1
Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Inventories (Details) - USD ($)
$ in Millions
Jun. 28, 2026
Sep. 29, 2025
Jun. 29, 2025
Accounting Policies [Abstract]      
Raw material $ 126.1   $ 144.5
Work-in-progress 105.7   284.6
Finished goods 2.4   6.3
Inventories $ 234.2 $ 392.3 $ 435.4