Common Stock Capital Shares Previously Reserved For Issuance.

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- Definition

Number Of Board Of Director Stock Compensation Plans

+ References

No definition available.

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- Definition

Number Of Employee Equity Incentive Plans

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Percentage Used In Calculation To Determine Vesting

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 14.F)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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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.

+ References

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (j)

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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- Definition

Restrictions on equity-based instruments during the vesting period, such as the inability to transfer unvested awards, are not taken into account in estimating the fair value of the award. However, restrictions that remain in effect after an award is vested, such as the inability to transfer or hedge vested options or a prohibition on the sale of outstanding vested shares (or other type of equity) for a period of time, affect the estimate of an award's fair value.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(v)

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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 718

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Share Based Payment Arrangements - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended				9 Months Ended			1 Months Ended			9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013 EquityPlan CompensationPlan	Sep. 29, 2012	Sep. 28, 2013 2013 Directors Stock Compensation Plan	Sep. 28, 2013 2003 Directors Stock Compensation Plan	Sep. 28, 2013 Restricted Stock Units (RSUs)	Sep. 29, 2012 Restricted Stock Units (RSUs)	Sep. 28, 2013 Restricted Stock Units (RSUs) Maximum	Jan. 23, 2013 Restricted Stock Units (RSUs) Chairman, President and Chief Executive Officer	Jan. 23, 2013 Restricted Stock Units (RSUs) Chairman, President and Chief Executive Officer Maximum	Sep. 28, 2013 Other Stock Compensation Plan	Sep. 28, 2013 Employee Stock Option	Sep. 29, 2012 Employee Stock Option	Sep. 28, 2013 Non-Vested Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of employee equity incentive plans			2
Number of board of director stock compensation plans			2
Common stock authorized for issuance					115,000
Common stock previously reserved for issuance						113,704
Income tax benefit realized on disqualifying dispositions of stock acquired by exercise of incentive stock options			$ 478,000	$ 750,000
Common stock reserved for issuance					102,655							6,695,537
The weighted average grant date fair value of stock options granted													$ 14.21	$ 13.99
Total intrinsic value of stock options exercised during periods													6,021,000	12,350,000
Unrecognized compensation cost									15,000,000				6,151,000		1,041,000
Unrecognized compensation cost expected to be recognized over period, years							3 years 4 months 24 days						3 years 1 month 6 days		2 years 2 months 12 days
Discount rate on stock awards							7.00%	7.00%
RSU awards maximum vesting period									5 years		3 years
Percentage used in calculation to determine vesting							5.00%
Awards issued							244,500			100,000					13,449
Recognized share-based compensation expense	$ 1,141,000	$ 1,427,000	$ 4,133,000	$ 4,613,000			$ 1,332,000	$ 632,000