Treasury Stock - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 30, 2018	Mar. 31, 2017	Oct. 18, 2016	Oct. 20, 2015
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 35,000,000	$ 35,000,000
Purchase of treasury shares (in shares)		22,666
Repurchase of treasury shares		$ 1,304,000
Remaining authorized amount for repurchase of common stock	$ 45,376,000
Treasury stock reissued at lower than repurchase price	$ 5,892,000	$ 5,667,000