Operating Property (Detail) - USD ($) $ in Thousands	Dec. 26, 2020	Dec. 28, 2019
Property, Plant and Equipment [Line Items]
Land	$ 16,328	$ 15,834
Buildings and improvements	64,314	58,484
Trailing equipment	433,400	425,595
Other equipment	82,361	66,791
Total operating property, gross	596,403	566,704
Less accumulated depreciation and amortization	299,407	280,849
Total operating property, net	$ 296,996	$ 285,855

Trailing equipment, gross.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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