Reporting Segment And Geographic Information (Schedule Of Revenue From Customers) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2011		Dec. 31, 2010		Jan. 01, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	$ 1,644,065		$ 1,293,937		$ 1,126,259
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	733,171	[1]	595,563	[1]	561,082	[1]
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	402,548	[1]	286,705	[1]	261,966	[1]
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	251,234	[1]	227,478	[1]	186,588	[1]
Other Non-US Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	$ 257,112	[1]	$ 184,191	[1]	$ 116,623	[1]

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