Share-Based Compensation - Summary of Stock Option Activity (Detail) (Stock Option [Member], USD $)	9 Months Ended
	Sep. 27, 2014
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at beginning of year	956,502
Shares, Exercised	(355,640)
Shares, Outstanding at end of period	600,862
Shares, Exercisable at end of period	600,862
Weighted-Average Exercise Price, Outstanding at beginning of year	$ 42.77
Weighted-Average Exercise Price, Exercised	$ 44.49
Weighted-Average Exercise Price, Outstanding at end of year	$ 41.76
Weighted-Average Exercise Price, Exercisable at end of year	$ 41.76
Intrinsic value of exercised options	$ 9,451,000