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Supplemental Balance Sheet Information Related To The Company's Finance Leases (Detail) - USD ($)
$ in Thousands
Mar. 24, 2019
Dec. 30, 2018
Land and buildings $ 22,182 $ 22,171
Accumulated depreciation and amortization (6,932) (6,678)
Finance lease assets, net 15,250 15,493
Current portion of long-term debt 659 643
Long-term debt, less current portion 16,202 16,363
Total principal payable on finance leases $ 16,861 $ 17,006
Finance Lease, Weighted Average Remaining Lease Term   14 years
Finance Lease, Weighted Average Discount Rate, Percent   11.30%
Operating Lease, Weighted Average Remaining Lease Term 7 years  
Operating Lease, Weighted Average Discount Rate, Percent 4.10%