Performance-Based Restricted Stock Unit Activity (Detail) - Performance Based Restricted Stock Units - $ / shares shares in Thousands	12 Months Ended
Dec. 29, 2020	Dec. 31, 2019	Jan. 01, 2019
Shares Outstanding
Outstanding Beginning Balance, Shares	105	105	68
Granted, Shares	42	31	38
Vested or released, Shares	(29)	(28)	0
Forfeited, Shares	(9)	(3)	(1)
Outstanding Ending Balance, Shares	109	105	105
Weighted Average Fair Value
Outstanding Beginning Balance, Weighted Average Fair Value	$ 41.42	$ 38.32	$ 38.68
Granted, Weighted Average Fair Value	38.90	53.22	37.70
Vested or released, Weighted Average Fair Value	35.95	42.41	0
Forfeited, Weighted Average Fair Value	35.95	43.13	38.66
Outstanding Ending Balance, Weighted Average Fair Value	$ 42.39	$ 41.42	$ 38.32

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

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).

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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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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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