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Stock-Based Compensation (Performance-Contingent Total Shareholder Return Shares) - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Performance Contingent Total Shareholders Return Shares | Performance contingent Awards 2013, 2014 and 2015      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 2 years 2 years 2 years
Performance Contingent Total Shareholders Return Shares | Performance contingent Awards 2012      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 18 months    
Total Shareholders Return      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of actual ROI attainment 88.00%    
Share-based payment award, fair value assumptions, method used Inputs into the model included the following for the company and comparator companies: (i) TSR from the beginning of the performance cycle through the measurement date; (ii) volatility; (iii) risk-free interest rates; and (iv) the correlation of the comparator companies’ TSR. The inputs are based on historical capital market data.    
Total Shareholders Return | EPIP (2014) and Omnibus Plan (2015)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to nonvested restricted stock granted by the EPIP $ 4.9    
Expected weighted-average period to recognize compensation cost (years) 1 year 29 days    
Total Shareholders Return | 2012 awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of actual ROI attainment 195.00%