Goodwill And Other Intangible Assets (Components Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Dec. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Total amortized finite-lived intangible assets, Gross Amount	186,227	$ 195,405
Total identifiable intangible assets, Gross Amount	206,739	215,917
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	145,759	150,977
Total identifiable intangible assets accumulated amortization	145,759	150,977
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Finite-lived customer lists, Gross Amount	75,931	79,110
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	57,396	58,873
Trade Name
Finite-Lived Intangible Assets [Line Items]
Finite-lived trade name, Gross Amount	24,639	27,172
Indefinite-lived trade names, Gross Amount	20,512	20,512
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	16,530	18,031
Patents, License Agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived patents, license agreements, Gross Amount	54,993	58,060
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	49,876	52,448
Software and Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Internal-use Software, Gross Amount	23,688	24,034
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	15,104	14,758
Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Finite-lived other intangible assets, Gross Amount	6,976	7,029
Total amortized finite-lived intangible assets, Gross Accumulated Amortization	6,853	$ 6,867
Minimum | Customer Lists
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	6 years
Minimum | Trade Name
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	1 year
Minimum | Patents, License Agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	3 years
Minimum | Software and Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	3 years
Minimum | Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	2 years
Maximum | Customer Lists
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	20 years
Maximum | Trade Name
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	30 years
Maximum | Patents, License Agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	14 years
Maximum | Software and Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	7 years
Maximum | Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	6 years