Additional common stock units for election of deferred annual incentive award, percentage.

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- Definition

Age for eligible employee.

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- Definition

Amount of annual incentive award payment participant can elect to defer.

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- Definition

Fraction of restricted stock award vesting on anniversary.

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- Definition

Installments in which restricted stock units vest and are converted to common stock.

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- Definition

Number of anniversaries of grant date upon which restricted stock units vest.

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- Definition

Stock option exercise price as percentage of market value.

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- Definition

The period in which a stock option can be exercised.

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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 S99

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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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

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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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- 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.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

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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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- Definition

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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Stock-Based Compensation - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015 USD ($)	Oct. 04, 2014 USD ($)	Oct. 03, 2015 USD ($) Anniversaries Installment	Oct. 04, 2014 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercise prices as percentage of the market value on the date of the grant			100.00%
Compensation expenses for stock options	$ 0.1	$ 0.1	$ 7.3	$ 7.7
Restricted Stock [Member] \| LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of restricted stock award vesting on anniversary			33.30%
Eligible age of officer for LTIP restricted stock award			55 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	36.2		$ 36.2
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			2 years 4 months 24 days
Number of anniversaries of grant date upon which restricted stock units vest \| Anniversaries			3
Installments in which restricted stock units vest and are converted to common stock \| Installment			3
Compensation expense	5.4	5.3	$ 29.8	27.8
Restricted Stock Units [Member] \| AIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of annual incentive award payment participant can elect to defer			50.00%
Additional common stock units for election of deferred annual incentive award, percentage			25.00%
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting period			3 years
Stock options term, years			10 years
Unrecognized compensation expense related to stock	1.4		$ 1.4
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			2 years 4 months 24 days
Restricted Stock And Restricted Stock Units [Member] \| AIP and LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	1.0		$ 1.0
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			1 year 8 months 12 days
Compensation expense	$ 0.0	$ 1.8	$ 2.3	$ 4.9