Stockholders' Equity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 01, 2016	Oct. 02, 2015	Jul. 03, 2015	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Jul. 04, 2014	Apr. 04, 2014	Jan. 01, 2016	Jan. 02, 2015
Class of Stock [Line Items]
Dividends Per Share	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.125	$ 0.125	$ 0.125	$ 0.125
Amount	$ 3,867	$ 3,870	$ 3,887	$ 3,858	$ 3,216	$ 3,262	$ 3,270	$ 3,262	$ 15,482	$ 13,010