SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 52,699	$ 53,112	$ 52,133
Additions	255	195	1,298
Deductions	545	607	319
Balance at End of Year	52,409	52,699	53,112
Allowance For Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	1,128	1,423	1,332
Additions	255	195	410
Deductions	67	489	319
Balance at End of Year	1,316	1,128	1,423
Valuation Allowance Of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	51,571	51,689	50,801
Additions	0	0	888
Deductions	478	118	0
Balance at End of Year	$ 51,093	$ 51,571	$ 51,689