Long-term Debt and Bank Credit Facilities (Details) - Debt outstanding (Parentheticals)	Oct. 05, 2013	Dec. 29, 2012
Senior Subordinated Convertible Debt [Member]
Long-term Debt and Bank Credit Facilities (Details) - Debt outstanding (Parentheticals) [Line Items]
Debt Instrument, interest rate, stated percentage		3.50%
Year of maturity		2035
Note Payable And Mortgage Notes [Member]
Long-term Debt and Bank Credit Facilities (Details) - Debt outstanding (Parentheticals) [Line Items]
Year of maturity	2019	2019
Equipment Note [Member]
Long-term Debt and Bank Credit Facilities (Details) - Debt outstanding (Parentheticals) [Line Items]
Debt Instrument, interest rate, stated percentage	2.61%
Year of maturity	2018