Income Taxes (Schedule Of Provision For Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010
Income Taxes [Abstract]
US Federal, Current	$ 21,157	$ 40,926	$ 25,357
US Federal, Deferred	(9,351)	(3,795)	(6,465)
US Federal, Income tax provision	11,806	37,131	18,892
US State, Current	5,169	2,496	3,709
US State, Deferred	(3,370)	505	(3,459)
US State, Income tax provision	1,799	3,001	250
Foreign, Current	17,278	9,939	3,638
Foreign, Deferred	(12,337)	(12,597)	878
Foreign, Income tax provision	4,941	(2,658)	4,516
Income tax provision	$ 18,546	$ 37,474	$ 23,658
Effective tax rate	11.00%	27.00%	27.00%