Goodwill And Other Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 years	Dec. 25, 2010	Dec. 26, 2009
Goodwill And Other Intangible Assets [Line Items]
Amortization of intangible assets	$ 5.2	$ 2.9	$ 3.1
Weighted average amortization period for the finite-lived intangible assets (in years)	5.7
Trade Names [Member]
Goodwill And Other Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 5.5	$ 5.6