Stock-Based Compensation - Additional Information (Detail) - USD ($)	6 Months Ended
Jul. 01, 2017	Jun. 25, 2017	Jun. 25, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized number of common stock shares for grant	2,000,000
Date of plan approval	May 20, 2009
Maximum grant period from date of plan approval	10 years
Shares available for grant under the plan	1,400,533
Compensation cost related to restricted stock	$ 1,300,000		$ 1,000,000
Compensation cost related to stock options	$ 100,000		100,000
Stock options granted	58,024
Stock options exercised	32,000
Cash received from stock option exercises under the plan			0.0
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from stock option exercises under the plan	$ 100,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested stock options	$ 8,100,000
Unrecognized compensation cost related to nonvested stock options, weighted-average period	2 years 8 months 12 days
Tax benefit generated from compensation cost and credited	$ 300,000		200,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested stock options	$ 1,200,000
Unrecognized compensation cost related to nonvested stock options, weighted-average period	3 years 4 months 24 days
Tax benefit generated from compensation cost and credited	$ 600,000	$ 0.0
Capitalized compensation cost	$ 0		$ 0
Stock options granted	58,204		61,084
Stock options exercised	32,000		0

Date of plan approval.

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Maximum grant period from date of plan approval.

+ References

No definition available.

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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-Publisher FASB
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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- Definition

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

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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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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Net number of share options (or share units) granted during the period.

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- Definition

Number of share options (or share units) exercised during the current period.

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- Definition

The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

+ References

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