Goodwill and Other Intangible Assets (Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 21,796	$ 24,405	$ 25,716
Estimated amortization expense for each of the next five fiscal years
Estimated amortization expense, 2012	17,670
Estimated amortization expense, 2013	14,131
Estimated amortization expense, 2014	11,738
Estimated amortization expense, 2015	9,291
Estimated amortization expense, 2016	$ 7,693