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Employee Benefit Plans, Deferred Compensation Plan and Retirement Benefit Plan - Schedule of Amounts Before Income Tax Effect Included in Accumulated Other Comprehensive Loss (Detail) - Defined Benefit Plan - USD ($) $ in Thousands	Dec. 28, 2020	Dec. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (3,811)	$ (2,097)
Accumulated other comprehensive loss	$ (3,811)	$ (2,097)

X

- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

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X

- Definition

Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

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-Publisher FASB
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- Definition

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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