Stockholders' Equity (Components Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Apr. 02, 2017	Jan. 01, 2017
Stockholders' Equity Note [Abstract]
Foreign currency translation adjustments, net of income taxes	$ (81,715)	$ (100,923)
Unrecognized losses and prior service costs, net of income taxes	399	399
Unrealized net losses on securities, net of income taxes	(314)	(337)
Accumulated other comprehensive loss	$ (81,630)	$ (100,861)