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Taxes on Income - Reconciliation of Statutory Federal Income Tax Rates (Detail)	9 Months Ended	12 Months Ended
	Dec. 28, 2013	Jan. 02, 2016	Jan. 03, 2015
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal income tax benefit	(112.70%)	1.60%	2.90%
Charitable product donations	(13.40%)	(0.30%)	(0.40%)
Non-deductible merger expenses	101.30%
Changes in tax contingencies	36.90%	(0.10%)	(2.70%)
Domestic production activities deduction	(8.60%)	(0.20%)	(0.20%)
Non-deductible expenses	3.80%	0.40%	0.90%
Other, net	(1.70%)	0.60%	(0.90%)
Effective income tax rate	40.60%	37.00%	34.60%

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Effective income tax rate reconciliation nondeductible acquisition cost.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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