Reporting Segment And Geographic Information (Schedule Of Long-Lived Assets) (Details) - USD ($) $ in Millions	Dec. 30, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 219.0	$ 233.2
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	157.7	171.3
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	40.3	44.8
Asia Pacific and Rest of World
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 21.0	$ 17.1