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Performance Contingent ROIC Shares (Detail) - Return On Invested Capital - Twenty Nineteen Award - Omnibus Plan - $ / shares shares in Thousands				12 Months Ended
	Oct. 06, 2019	Jul. 14, 2019	May 23, 2019	Dec. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	2	5	11	440
Assumed vesting date	Mar. 01, 2022	Mar. 01, 2022	Mar. 01, 2022	Mar. 01, 2022
Fair value per share	$ 22.52	$ 23.32	$ 23.08	$ 18.29

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- Definition

Share based compensation arrangement by share based payment award vesting date.

+ References

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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