Contingent Liabilities And Settlements (Narrative) (Details) (USD $)	2 Months Ended	3 Months Ended
	Dec. 25, 2011	Mar. 31, 2013	Mar. 25, 2012	Nov. 02, 2011	Dec. 28, 2008
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency Accrual, at Carrying Value					$ 5,700,000
Estimated Litigation Liability				6,584,000
Benefit due to reversal of accrued litigation reserve		6,584,000	0
Loss Contingency Accrual, Carrying Value, Provision	900,000
Loss Contingency, Damages Sought, Value		$ 65,000,000