Reporting Segment And Geographic Information (Schedule Of Revenue From Customers) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 30, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 28, 2012		Dec. 30, 2011		Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue	$ 515,523	$ 504,763	$ 517,560	$ 502,267	$ 435,170	$ 417,433	$ 407,169	$ 384,293	$ 2,040,113	[1]	$ 1,644,065	[1]	$ 1,293,937	[1]
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									962,865	[1]	733,171	[1]	595,563	[1]
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									456,472	[1]	402,548	[1]	286,705	[1]
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									320,131	[1]	251,234	[1]	227,478	[1]
Other Non-US Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total consolidated revenue									$ 300,645	[1]	$ 257,112	[1]	$ 184,191	[1]

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