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Business and Summary of Significant Accounting Policies Insurance (Details) - USD ($)
$ in Millions
Jan. 02, 2016
Jan. 03, 2015
Self-Insurance Liability $ 7.7 $ 7.8
Compensation and Benefits [Member]    
Self-Insurance Liability, Current 4.0 4.4
Other Noncurrent Liabilities [Member]    
Self-Insurance Liability, Noncurrent 3.7 3.4
Other Current Assets [Member]    
Restricted Deposit Workers Compensation $ 3.2 $ 3.2