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Payout Percentage of Total Shareholder Return Shares (Detail) - Total Shareholders Return	12 Months Ended
	Dec. 29, 2018
2014 Award | Fiscal 2016
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award Equity Instruments Other Than Options Restricted Stock Units [Line Items]
Payout percentage	27.00%
2015 Award | Fiscal 2017
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award Equity Instruments Other Than Options Restricted Stock Units [Line Items]
Payout percentage	0.00%
2016 Award | Fiscal 2018
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award Equity Instruments Other Than Options Restricted Stock Units [Line Items]
Payout percentage	12.50%

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- Definition

Schedule of share based compensation arrangements by share based payment award, equity instruments, other than options, restricted stock units.

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- Definition

Share-based compensation arrangement by Share-based payment award payout percentage.

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