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Operating Property (Detail) - USD ($) $ in Thousands | Dec. 25, 2021 | Dec. 26, 2020
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Land | $ 16,328 | $ 16,328
Buildings and improvements | 65,034 | 64,314
Trailing equipment | 479,300 | 433,400
Information technology hardware and software | 91,115 | 72,560
Other equipment | 9,708 | 9,801
Total operating property, gross | 661,485 | 596,403
Less accumulated depreciation and amortization | 344,099 | 299,407
Total operating property, net | $ 317,386 | $ 296,996

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