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Share-Based Compensation - Summary of Restricted Stock Award Activity (Detail)
9 Months Ended
Oct. 01, 2016
$ / shares
shares
Restricted Stock  
Restricted Stock Awards and Units  
Shares, Outstanding at beginning of period (in shares) 605,193
Shares, Granted (in shares) 412,472
Shares, Released (in shares) (234,402)
Shares, Forfeited (in shares) (28,112)
Shares, Outstanding at end of period (in shares) 755,151
Weighted-Average Grant Date Fair Value  
Weighted-Average Grant Date Fair Value, Outstanding at beginning of year (USD per share) | $ / shares $ 77.82
Weighted-Average Grant Date Fair Value, Released (USD per share) | $ / shares 56.46
Weighted-Average Grant Date Fair Value, Forfeited (USD per share) | $ / shares 79.34
Weighted-Average Grant Date Fair Value, Outstanding at end of period (USD per share) | $ / shares $ 70.25
Restricted Stock Awards  
Restricted Stock Awards and Units  
Shares, Granted (in shares) 381,278
Weighted-Average Grant Date Fair Value  
Weighted-Average Grant Date Fair Value, Granted (USD per share) | $ / shares $ 51.60
Restricted Stock Units  
Restricted Stock Awards and Units  
Shares, Granted (in shares) 31,194
Weighted-Average Grant Date Fair Value  
Weighted-Average Grant Date Fair Value, Granted (USD per share) | $ / shares $ 51.42