Income Taxes - Reconciliation of Differences Between Income Taxes Computed at the Federal Statutory Rate to the Effective Rate (Details)	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Tax Disclosure [Abstract]
U.S. federal statutory tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	2.20%	0.90%	2.70%
Tax relief for U.S. manufacturers	(2.30%)	(2.60%)	(2.40%)
Permanent book vs. tax differences	(2.00%)	(1.20%)	(1.60%)
Foreign tax rate differentials	(1.90%)	(1.00%)	(1.50%)
Reserve adjustments and other	0.20%	0.70%	(1.40%)
Consolidated effective tax	31.20%	31.80%	30.80%

Effective Income Tax Rate Reconciliation, Permanent Book Versus Tax Differences

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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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

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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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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