Leases - Other Supplemental Quantitative Disclosures (Detail) $ in Thousands	4 Months Ended
	Apr. 20, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from financing leases	$ 313
Operating cash flows from operating leases	22,237
Financing cash flows from financing leases	1,872
Right-of-use assets obtained in exchange for new financing lease liabilities	7,141
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 6,666
Financing leases, weighted-average remaining lease term	4 years 2 months 12 days
Operating leases, weighted-average remaining lease term	10 years 2 months 12 days
Financing leases, weighted-average discount rate	3.50%
Operating leases, weighted-average discount rate	4.10%