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Performance Contingent TSR Shares (Detail) - Total Shareholders Return - EPIP (2014) and Omnibus Plan (2015) - $ / shares
shares in Thousands
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Grant Date Fourth January Twenty Fifteen    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares granted 414  
Assumed vesting date Mar. 01, 2017  
Fair value per share $ 21.21  
Grant Date January First Twenty Fourteen    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares granted   366
Assumed vesting date   Mar. 01, 2016
Fair value per share   $ 23.97