Lease Commitments - Summary of Components of Lease Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Lease expense:
Amortization of right-of-use assets	$ 720	$ 689	$ 1,369	$ 1,411
Interest on lease liabilities	62	78	121	167
Finance lease expense	782	767	1,490	1,578
Operating lease expense	20,384	20,318	40,720	40,604
Variable lease expense	4,711	1,465	9,203	5,981
Sublease income		(293)	(78)	(586)
Total lease expense	$ 25,877	$ 22,257	$ 51,335	$ 47,577