Summary of Total Cost and Employer Contributions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 09, 2021	Oct. 03, 2020	Oct. 09, 2021	Oct. 03, 2020
Compensation And Retirement Disclosure [Abstract]
Defined contribution plan, plan name description			401(k) Retirement Savings Plan
Total cost and employer contributions	$ 6,300	$ 6,355	$ 21,655	$ 21,577