Leases - Lease Costs Incurred By Lease Type, and/or Type Of Payment and Other Supplemental Quantitative Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Oct. 05, 2019	Oct. 03, 2020	Oct. 05, 2019
Lease cost:
Amortization of right-of-use assets	$ 1,704	$ 1,708	$ 5,733	$ 5,307
Interest on lease liabilities	188	236	675	768
Operating lease cost	16,385	16,212	55,066	53,892
Short-term lease cost	1,156	662	2,308	2,024
Variable lease cost	4,926	5,619	17,961	19,610
Total lease cost	$ 24,359	$ 24,437	81,743	81,601
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from financing leases			674	768
Operating cash flows from operating leases			57,526	55,997
Financing cash flows from financing leases			6,493	4,985
Right-of-use assets obtained in exchange for new financing lease liabilities			58	9,714
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 11,861	$ 34,116
Financing leases, weighted-average remaining lease term	3 years 1 month 6 days	3 years 1 month 6 days	3 years 1 month 6 days	3 years 1 month 6 days
Operating leases, weighted-average remaining lease term	9 years 7 months 6 days	9 years 7 months 6 days	9 years 7 months 6 days	9 years 7 months 6 days
Financing leases, weighted-average incremental borrowing rate	3.70%	3.70%	3.70%	3.70%
Operating leases, weighted-average incremental borrowing rate	4.10%	4.10%	4.10%	4.10%