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Income Taxes (Reconciliation Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Taxes [Abstract]
Federal income taxes at statutory rate	$ 47,124	$ 48,493	$ 49,906
State income taxes, net of federal tax benefit	(236)	689	670
Excess tax benefits on equity awards	(4,614)	(9,140)
Foreign rate differential	(267)	(337)	(461)
U.S. tax reform	30,136
All other, net	(38)	(1,194)	(2,198)
Income taxes	$ 72,105	$ 38,511	$ 47,917

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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 expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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