XML 58 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Retirement Benefit Plans Retirement Benefit Plans Deferred Compensation (Details) (USD $)
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
Schedule of Deferred Compensation [Line Items]      
Company's maximum match under employee deferred compensation program $ 4,500    
Deferred Compensation Arrangement with Individual, Employer Contribution $ 400,000 $ 400,000 $ 300,000