Business Combinations (Schedule Of Amortizable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, estimated fair value	$ 44,900
License of existing technologies [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, estimated fair value	39,800
Weighted average useful life	7 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, estimated fair value	3,800
Weighted average useful life	10 years
RAID License Payments [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, estimated fair value	$ 1,300
Weighted average useful life	8 years