Leases - Lease Costs Incurred By Lease Type, and/or Type Of Payment and Other Supplemental Quantitative Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 11, 2020	Jul. 13, 2019	Jul. 11, 2020	Jul. 13, 2019
Lease cost:
Amortization of right-of-use assets	$ 1,726	$ 1,541	$ 4,029	$ 3,599
Interest on lease liabilities	201	219	487	532
Operating lease cost	16,552	16,316	38,681	37,680
Short-term lease cost	556	548	1,152	1,362
Variable lease cost	5,223	6,086	13,035	13,991
Total lease cost	$ 24,258	$ 24,710	57,384	57,164
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from financing leases			487	532
Operating cash flows from operating leases			40,567	38,971
Financing cash flows from financing leases			3,900	3,303
Right-of-use assets obtained in exchange for new financing lease liabilities			43	7,177
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 6,957	$ 16,633
Financing leases, weighted-average remaining lease term	3 years 2 months 12 days	3 years 2 months 12 days	3 years 2 months 12 days	3 years 2 months 12 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	3.60%	3.60%	3.60%	3.60%
Operating leases, weighted-average incremental borrowing rate	4.20%	4.20%	4.20%	4.20%