Income Taxes (Reconciliation Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Income Taxes [Abstract]
Federal income taxes at statutory rate	$ 48,493	$ 49,906	$ 40,479
State income taxes, net of federal tax benefit	689	670	653
Excess tax benefits on equity awards	(9,140)
Qualified production activities deduction	(856)	(952)	(887)
Foreign rate differential	(337)	(461)	(603)
U.S research credit	(339)	(425)	(293)
All other, net	1	(821)	(332)
Income taxes	$ 38,511	$ 47,917	$ 39,017

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

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Amount of the difference between reported income tax expense (benefit) and the 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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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount 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 exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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Employee Service Share-based Compensation, Tax Benefit Realized From Shared-Based Awards Other Than Options

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