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Performance Contingent ROIC Shares (Detail) (Return On Invested Capital, USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Grant Date First January Twenty Thirteen
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares granted 414
Vesting date Mar. 01, 2015
Fair value per share $ 15.51
Grant Date Sixteen July Two Thousand And Twelve
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares granted 206
Vesting date Feb. 28, 2014
Fair value per share $ 14.37