Accrued Payroll and Payroll-related Liabilities, and Accrued Liabilities and Other Current Liabilities (Tables)  | 
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 25, 2016  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Payables and Accruals [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of accrued payroll and payroll-related liabilities | 
 
Accrued payroll and payroll-related liabilities consist of the following at December 25, 2016 and December 27, 2015 (in thousands):
 
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| Schedule of accrued liabilities | 
 
Accrued liabilities and other current liabilities consist of the following at December 25, 2016 and December 27, 2015 (in thousands):
 
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- Definition Tabular disclosure of accrued payroll and payroll-related liabilities. No definition available. 
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- References No definition available. 
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- Definition Tabular disclosure of the components of accrued liabilities. No definition available. 
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