Supplemental Cash Flow Information Related To Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 14, 2020	Jun. 16, 2019	Jun. 14, 2020	Jun. 16, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 10,048	$ 9,398	$ 20,167	$ 20,088
Operating cash flows from finance leases	897	317	1,272	796
Financing cash flows from finance leases	691	106	1,040	261
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	6,596	13,391	15,578	26,368
Finance leases	$ 18,746	$ 0	$ 18,746	$ 0