Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings	$ 119,526	$ 110,040
Foreign currency translation adjustment and other (net of taxes of $367 and $1,846, respectively)	3,027	(9,208)
Unrealized holding gain (loss) on available-for-sale investments (net of taxes of $62 and $115, respectively)	97	176
Comprehensive income	$ 122,650	$ 101,008