Intangible Assets And Other Long-Lived Assets (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011 years	Dec. 25, 2010	Dec. 26, 2009
Finite-Lived Intangible Assets [Line Items]
Minimum useful life of intangible assets, in years	3
Maximum useful life of intangible assets, in years	20
Impairment loss written off	$ 11,200,000	$ 11,000,000	$ 17,600,000
Intangible amortization expense	1,686,000	1,955,000	1,634,000
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense, year one	1,700,000
Estimated amortization expense, year two	1,700,000
Estimated amortization expense, year three	1,700,000
Estimated amortization expense, year four	1,700,000
Estimated amortization expense, year five	1,700,000
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense, year one	1,400,000
Estimated amortization expense, year two	1,400,000
Estimated amortization expense, year three	1,400,000
Estimated amortization expense, year four	1,400,000
Estimated amortization expense, year five	1,400,000
Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Minimum useful life of intangible assets, in years	3
Maximum useful life of intangible assets, in years	20
Intangible amortization expense	1,649,000	1,542,000	1,271,000
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Minimum useful life of intangible assets, in years	3
Maximum useful life of intangible assets, in years	5
Exclusive Distribution Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Minimum useful life of intangible assets, in years	10
Intangible amortization expense	$ 37,000	$ 413,000	$ 363,000