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Share-Based Compensation - Summary of Performance Share Award Activity (Detail) (Performance Share Awards [Member], USD $)
9 Months Ended
Sep. 27, 2014
Performance Share Awards [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares, Outstanding at beginning of year 195,159
Shares, Granted 4,323
Shares, Released (33,535)
Shares, Forfeited (20,555)
Shares, Outstanding at end of period 145,392
Weighted-Average Grant Date Fair Value, Outstanding at beginning of year $ 42.25
Weighted-Average Grant Date Fair Value, Granted $ 69.41
Weighted-Average Grant Date Fair Value, Released $ 41.45
Weighted-Average Grant Date Fair Value, Forfeited $ 41.45
Weighted-Average Grant Date Fair Value, Outstanding at end of period $ 43.36