Equity-Based Compensation - Summary of Stock Option Activity (Detail) - Stock Option [Member]	9 Months Ended
	Oct. 03, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at beginning of year	415,960
Shares, Exercised	(185,770)
Shares, Expired	(1,550)
Shares, Outstanding at end of period	228,640
Shares, Exercisable at end of period	228,640
Weighted-Average Exercise Price, Outstanding at beginning of year | $ / shares	$ 40.19
Weighted-Average Exercise Price, Exercised | $ / shares	43.32
Weighted-Average Exercise Price, Expired | $ / shares	51.62
Weighted-Average Exercise Price, Outstanding at end of period | $ / shares	37.56
Weighted-Average Exercise Price, Exercisable at end of period | $ / shares	$ 37.56
Intrinsic value of exercised options | $	$ 9,020,000
Weighted-average remaining contractual term, Outstanding	2 years 2 months 12 days
Weighted-average remaining contractual term, Exercisable	2 years 2 months 12 days
Aggregate intrinsic value, Outstanding | $	$ 13,000,000
Aggregate intrinsic value, Exercisable | $	$ 13,000,000