Segment Information (Schedule Of Revenue From External Customers And Long-Lived Assets, By Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 525,603	[1]	$ 508,028	[1]	$ 530,997	[1]
Long-lived assets	37,311		39,149
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	13,541		13,113
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	200,984		194,401		206,372
Asia Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	80,716		73,164		74,689
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	62,254		65,293		70,120
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	99,672		57,610		73,069
Long-lived assets	16,879		17,032
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	43,946		64,113		62,957
Israel [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	3,315		4,873
Europe And Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	36,144		33,895		40,466
Other Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	1,887		19,552		3,324
Long-lived assets	$ 3,576		$ 4,131

[1] Storage net revenues are comprised of Enterprise Storage Products and laser printer ASIC products of the Microprocessor Products Division. Carrier net revenues are comprised of Communication and Broadband Wireless Products.