Treasury Stock - Additional Information (Detail) - USD ($)	6 Months Ended
	Jul. 03, 2015	Jul. 04, 2014	May. 29, 2014	Feb. 15, 2013	Feb. 09, 2012
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 35,000,000	$ 35,000,000	$ 35,000,000
Purchase of treasury shares (in shares)	162,833	197,988
Repurchase of treasury shares	$ 7,004,000	$ 14,383,000
Remaining authorized amount for repurchase of common stock	28,074,000
Treasury stock reissued at lower than repurchase price	$ 4,943,000	$ 6,050,000