Business Segments and Geographic Information - Schedule of Geographically Located Property and Equipment, Net (Details) - USD ($) $ in Millions	Sep. 28, 2024	Sep. 30, 2023	Sep. 24, 2022
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	$ 537.8	$ 517.0	$ 481.6
United States
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	379.7	367.6	332.4
Europe
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	70.6	67.0	72.1
Costa Rica
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	40.0	36.0	32.1
United Kingdom
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	32.0	32.4	31.7
Rest of world
Geographic Information For Property Plant And Equipment [Line Items]
Property, plant and equipment, net	$ 15.5	$ 14.0	$ 13.3