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Summary of Significant Accounting Policies (Ins) (Details)
12 Months Ended
Dec. 27, 2016
USD ($)
Insurance claims  
Property insurance deductible $ 250,000
Plan | Minimum  
Insurance claims  
Property insurance claim 50,000
Employment practices liability  
Insurance Reserves  
Self-insurance limits 250,000
Employment practices liability/Class Action  
Insurance Reserves  
Self-insurance limits 2,000,000
Workers compensation  
Insurance Reserves  
Self-insurance limits 350,000
General liability  
Insurance Reserves  
Self-insurance limits 250,000
Employee healthcare  
Insurance Reserves  
Self-insurance limits $ 250,000