Goodwill and Intangible Assets (Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years) (Details) $ in Millions	Jan. 01, 2021 USD ($)
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	$ 15.2
2020	5.4
2021	1.4
2022	1.1
2023	1.1
Thereafter	2.7
Cost of sales [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	3.0
2020	0.1
2021	0.1
2022	0.1
2023	0.1
Thereafter	1.7
Operating Expense [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	12.2
2020	5.3
2021	1.3
2022	1.0
2023	1.0
Thereafter	$ 1.0