Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 25, 2011
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits at beginning of year	$ 24,436	$ 22,543	$ 18,841
Increases in tax positions for prior years	910	225	997
Decreases in tax positions for prior years	(1,083)	(1,068)	(44)
Increases in tax positions for current year	4,003	5,209	1,506
Settlements	0	(683)	(443)
Acquisition reserves	0	1,166	4,640
Lapse in statute of limitations	(1,674)	(2,956)	(2,954)
Gross unrecognized tax benefits at end of year	$ 26,592	$ 24,436	$ 22,543