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Performance Contingent ROIC Shares (Detail) - Return On Invested Capital - EPIP (2014) and Omnibus Plan (2015) - $ / shares
shares in Thousands
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
2016 Award    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares granted 401  
Assumed vesting date Feb. 21, 2018  
Fair value per share $ 21.49  
2015 Award    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares granted   414
Assumed vesting date   Feb. 23, 2017
Fair value per share   $ 19.14