Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Numerator
Net income	$ 33,104	$ 34,259	$ 97,452	$ 70,919
Denominator:
Weighted average basic shares outstanding	31,692	32,281	31,895	32,317
Effect of stock-based compensation awards	150	90	144	77
Weighted average diluted shares outstanding	31,842	32,371	32,039	32,394
Earnings Per Share:
Basic	$ 1.04	$ 1.06	$ 3.06	$ 2.19
Diluted	$ 1.04	$ 1.06	$ 3.04	$ 2.19