Significant Estimates and Concentrations - Additional Information (Detail) - USD ($) |
Jun. 26, 2021 |
Dec. 26, 2020 |
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| Workers Compensation Insurance Program [Member] | Workers Compensation Insurance Claims [Member] | ||
| Significant Estimates And Concentrations [Line Items] | ||
| Loss contingency, stated amount | $ 200,000 | $ 200,000 |
| Loss contingency, estimate of possible loss | 389,000 | 391,000 |
| Health Insurance Program [Member] | Insurance Claims [Member] | ||
| Significant Estimates And Concentrations [Line Items] | ||
| Loss contingency, stated amount | 250,000 | 250,000 |
| Loss contingency, estimate of possible loss | $ 680,000 | $ 916,000 |
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- Definition Loss contingency stated amount. No definition available.
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- Definition Significant Estimates And Concentrations [Line Items] No definition available.
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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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