Goodwill and Intangible Assets (Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years) (Details) $ in Millions	Apr. 02, 2021 USD ($)
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	$ 11.0
2020	6.7
2021	2.9
2022	1.0
Thereafter	2.6
Finite-Lived Intangible Asset, Expected Amortization, Year One	11.1
Cost of sales [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	2.7
2020	5.4
2021	1.9
2022	0.1
Thereafter	1.7
Finite-Lived Intangible Asset, Expected Amortization, Year One	5.4
Operating Expense [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	8.3
2020	1.3
2021	1.0
2022	0.9
Thereafter	0.9
Finite-Lived Intangible Asset, Expected Amortization, Year One	$ 5.7