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Retirement Benefit Plans Retirement Benefit Plans Deferred Compensation (Details) (USD $)
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Schedule of Deferred Compensation [Line Items]      
Company's maximum match under employee deferred compensation program $ 4,500    
Deferred Compensation Arrangement with Individual, Employer Contribution $ 500,000 $ 400,000 $ 400,000