Reporting Segment And Geographic Information (Schedule Of Revenue From Customers) (Details) (USD $)	3 Months Ended								12 Months Ended
	Jan. 02, 2015	Oct. 03, 2014	Jul. 04, 2014	Apr. 04, 2014	Jan. 03, 2014	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015		Jan. 03, 2014		Dec. 28, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
2017	$ 14,104,000								$ 14,104,000
Maximum Percentage Of Various Operations Segment By Entities Total Operations									10.00%
Total consolidated revenue	563,830,000	584,796,000	642,199,000	604,721,000	599,218,000	556,502,000	576,293,000	556,111,000	2,395,546,000	[1]	2,288,124,000	[1]	2,040,113,000	[1]
Number of Reportable Segments									4
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									1,147,716,000	[1]	1,131,230,000	[1]	962,865,000	[1]
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									581,753,000	[1]	535,559,000	[1]	456,472,000	[1]
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									345,580,000	[1]	317,237,000	[1]	320,131,000	[1]
Other Non-US Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									320,497,000	[1]	304,098,000	[1]	300,645,000	[1]
Advanced Devices [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									138,508,000		127,055,000		120,580,000
Ten Percent Customer member [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									$ 0		$ 0		$ 0
Ten Percent Customer member [Member] | Sales Revenue, Net [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration Risk, Percentage									10.00%

[1] Revenue is attributed to countries based on the location of the customer.