Percentage of conversion price equaling stock price.

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

+ References

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- Definition

Number of shares issued pursuant to the terms of a deferred compensation arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-SubTopic 10
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- Definition

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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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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No definition available.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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-Topic 718
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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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-Publisher FASB
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Aggregate value of stock related to Restricted Stock Awards issued during the period.

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Stock-Based Compensation (Deferred and Restricted Stock) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended	12 Months Ended
	Jan. 02, 2015	May. 31, 2013	Jul. 18, 2015	Jan. 02, 2016	Jan. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award		$ 1.3
Restricted shares issued		58,500
Deferred and restricted stock \| Retainer Conversion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Retainers conversion into deferred shares				130.00%
Deferred shares distributed				0
Aggregate shares converted	19,852
Deferred Stock \| Distributed to director who retired on May 21, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares distributed					105,621
Deferred Stock \| Distributed to director who retired on December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares distributed					46,364
Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected weighted-average period to recognize compensation cost (years)				1 year 29 days
Restricted Stock Award \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares per share		$ 22.25
Deferred Stock Activity
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested restricted stock granted by the EPIP				$ 1.1
Expected weighted-average period to recognize compensation cost (years)				10 months 2 days
Total fair value of shares vested				$ 2.2
Award vesting tax windfall				$ 0.1
Omnibus Plan \| Deferred and restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Retainers conversion into deferred shares				100.00%
Vesting period				1 year
Annual Grant Awards \| Deferred and restricted stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares converted			69,582
Annual Grant Awards \| Deferred Stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares distributed				55,713
Minimum \| Deferred and restricted stock \| Retainer Conversion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				2 years
Minimum \| Annual Grant Awards \| Deferred and restricted stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year