Equity-Based Compensation - Effect of Recording Equity-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	$ 1,019	$ 656	$ 1,987	$ 1,328
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	57	149	132	364
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	656	450	1,200	816
ESPP awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	$ 306	$ 57	$ 655	$ 148