Leases - Future Maturities under Operating Leases (Detail) - USD ($) $ in Thousands	Jul. 04, 2020	Dec. 28, 2019
Leases [Abstract]
Remainder of 2020	$ 4,449
2021	7,356
2022	6,497
2023	6,260
2024	6,211
Thereafter	18,933
Total future minimum lease payments	49,706
Less: Imputed interest	(9,190)	$ (7,428)
Operating lease liability - total	40,516	28,743
Current portion of operating lease liability	6,114	4,703
Operating lease liability, less current portion	$ 34,402	24,040
Remainder of 2020		6,319
2021		4,771
2022		3,878
2023		3,741
2024		3,771
Thereafter		13,691
Total future minimum lease payments		$ 36,171

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

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