The increase in the number of shares of common stock reserved for future issuance.

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- Definition

The maximum number of years after grant date, that a share-based payment arrangement is exercisable, before expiring.

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No definition available.

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- Definition

Percentage of total shares outstanding at fiscal year end, to calculate the Evergreen provision, in accordance with the 2007 Plan.

+ References

No definition available.

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- Definition

Schedule Of Share Based Compensation Arrangements [Line Items]

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award options outstanding weighted average remaining contractual term price below market value.

+ References

No definition available.

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- Definition

Initial amount of shares reserved for future issuance.

+ References

No definition available.

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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)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

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

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the 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 (h)(1)(i)
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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 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

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.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

+ 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 (e)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

+ 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)
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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Aug. 07, 2007	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 31, 2011
Schedule Of Share Based Compensation Arrangements [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options		$ 27.1
Percentage of company's total shares outstanding		3.00%			3.00%
Common stock reserved for future issuance		15,600,000
Unrecognized share-based compensation related to unvested options granted		$ 0.1
Total fair market value of all vesting options		10.6	$ 10.4	$ 11.2
Aggregated intrinsic value of options outstanding		330.9
Aggregated intrinsic value of options exercisable		204.9
Aggregated intrinsic value of options exercised		$ 57.0	$ 26.4	6.6
Weighted average remaining contractual term of options outstanding, years price below the market value		5 years 7 months 6 days	5 years 6 months
Weighted average remaining contractual term of options exercisable, years		3 years 10 months 24 days	4 years
Total income tax benefit recognized for share-based compensation expense		$ 16.2	$ 3.7	$ 3.7
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		4,000,000
Two Thousand Seven Plan [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Issuance of options to purchase shares	3,000,000.0
Expiration period of options	10 years
Common stock shares added to share reserve	1,700,000.0
Employee Stock Option [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Unrecognized share-based compensation related to unvested options granted, term		3 years 4 months 24 days
Restricted Stock Units (RSUs) [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Unrecognized share-based compensation related to unvested options granted, term		1 year
Two Thousand Seven Plan [Member] \| Employee Stock Option [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Vesting period of options	5 years
Two Thousand Seven Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Schedule Of Share Based Compensation Arrangements [Line Items]
Vesting period of options	1 year