Schedule II-Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Dec. 25, 2009
Allowances for Doubtful Accounts [Member]
Movement in Valuation and Reserves [Roll Forward]
Balance	$ 941	$ 1,377	$ 2,456
Discontinued Operations	0	0	(776)
Charged to Costs and Expenses	28	128	330
Charged to Other Accounts	0	0	0
Deductions	(335)	(564)	(633)
Balance	634	941	1,377
Valuation Allowance on Deferred Tax Assets [Member]
Movement in Valuation and Reserves [Roll Forward]
Balance	15,086	11,481	9,696
Discontinued Operations	0	0	0
Charged to Costs and Expenses	38,000	4,650	4,059
Charged to Other Accounts	20,394	0	0
Deductions	(376)	(1,045)	(2,274)
Balance	$ 73,104	$ 15,086	$ 11,481