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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No definition available.

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- Definition

Fraction of restricted stock award vesting on anniversary.

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No definition available.

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- Definition

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

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No definition available.

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- Definition

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

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No definition available.

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- Definition

Stock option exercise price as percentage of market value.

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No definition available.

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- Definition

The period in which a stock option can be exercised.

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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 S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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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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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-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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No definition available.

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

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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)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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Stock-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017 USD ($)	Jul. 02, 2016 USD ($)	Jul. 01, 2017 USD ($) $ / shares Anniversaries Installment	Jul. 02, 2016 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%
Grant date fair value of stock options granted \| $ / shares			$ 12.61
Compensation expenses for stock options	$ 7.2	$ 7.1	$ 7.5	$ 7.3
Restricted Stock [Member] \| LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of restricted stock award vesting on anniversary			0.333%
Eligible age of officer for 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	46.3		$ 46.3
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			2 years 6 months
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	21.1	18.3	$ 26.1	23.2
Restricted Stock Units [Member] \| AIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Eligible age of officer for restricted stock award			55 years
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%
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	1.6		$ 1.6
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			2 years 1 month 6 days
Compensation expense	3.2	$ 4.8	$ 7.5	$ 7.0
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	$ 2.9		$ 2.9
Weighted-average recognition period for unrecognized compensation expense related to stock (years)			2 years 4 months 24 days