Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Period for Recognition

No definition available.

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- Definition

Employee service share based compensation recognized period costs capitalized amount.

+ References

No definition available.

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- Definition

Estimated forfeiture rate for unvested options for all non-senior management.

+ References

No definition available.

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- Definition

Estimated forfeiture rate for unvested options for senior management.

+ References

No definition available.

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- Definition

Expiration period of stock option plan.

+ References

No definition available.

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- Definition

Increase (decrease) in compensation expense due to revised estimated forfeiture rates.

+ References

No definition available.

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- Definition

Number of groups within employee population.

+ References

No definition available.

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- Definition

Percentage of stock options granted to all other employees expected to vest.

+ References

No definition available.

+ Details

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- Definition

Percentage of stock options granted to senior management expected to vest.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award options vested fair value.

+ References

No definition available.

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- Definition

Shares based compensation arrangement by shares based payment award options exercisable intrinsic value.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ 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 (f)(2)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ 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 (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Stock-Based Compensation Expense - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2014 group	Jun. 30, 2013	Jun. 29, 2014 group	Jun. 30, 2013	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Number of groups within the employee population	2		2
Percentage of stock options granted to senior management expected to vest	72.00%		72.00%
Percentage of stock options granted to all other employees expected to vest	70.00%		70.00%
Estimated forfeiture rate for unvested options for senior management	11.00%		11.00%
Estimated forfeiture rate for unvested options for all non-senior management	12.00%		12.00%
Increase (decrease) in compensation expense due to revised estimated forfeiture rates	$ 288,000	$ 300,000
Weighted-average grant-date fair values of stock options granted, in dollars per share	$ 15.28	$ 8.07	$ 15.34	$ 8.07
Total intrinsic values of stock options exercised	5,710,000	6,759,000	14,643,000	13,952,000
Total fair values of stock options vest	2,621,000	2,298,000	10,982,000	9,230,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	17,817,000		17,817,000
Share-based compensation expense not yet recognized, period for recognition			1 year 6 months 22 days
Employee Service Share Based Compensation Recognized Period Costs Capitalized Amount	$ 0		$ 0		$ 0
Stock Option And Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock option plans			4 years
Expiration period of stock option plan			10 years
General Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock option plans			4 years
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under stock option plans	9,957,589		9,957,589
Expiration period of stock option plan			10 years
2015 Through Expected Life of Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield			0.56%