Income Taxes - Additional Information (Detail) - USD ($)	9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014
Income Tax [Line Items]
Effective income tax rate	31.90%	32.10%
Minimum [Member]
Income Tax [Line Items]
Decrease in unrecognized tax benefits	$ 0
Increase in unrecognized tax benefits	0
Maximum [Member]
Income Tax [Line Items]
Decrease in unrecognized tax benefits	900,000
Increase in unrecognized tax benefits	$ 300,000