Vesting Time-Based Restricted Stock Units (Detail) - USD ($) $ in Thousands	4 Months Ended
Apr. 24, 2021	Apr. 18, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends at Vesting	$ 163	$ 87
Fiscal Year Vested 2021 \| 2020 Award Granted
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends at Vesting	53
Tax Benefit	16
Fair Value at Vesting	1,520
Fiscal Year Vested 2021 \| 2019 Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends at Vesting	107
Tax Benefit	77
Fair Value at Vesting	1,582
Fiscal Year Vested 2020 \| 2019 Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends at Vesting	55
Tax Benefit	57
Fair Value at Vesting	$ 1,831

Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

No definition available.

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind dividends declared for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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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