Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Net income	$ 29,246	$ 33,101	$ 86,452	$ 95,803
Other comprehensive income (loss):
Unrealized holding (losses) gains on available-for-sale investments, net of tax benefit (expense) of $341, ($273), $(98) and ($136)	179	247	(620)	495
Foreign currency translation gains (losses)	126	421	(384)	357
Other comprehensive (loss) income	305	668	(1,004)	852
Comprehensive income	$ 29,551	$ 33,769	$ 85,448	$ 96,655