Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Oct. 03, 2014	Sep. 27, 2013
Net income	$ 11,040	$ 11,094	$ 31,458	$ 29,918
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	(840)	556	(471)	119
Unrealized (loss) gain on available for sale investment securities, net of tax	(13)	(3)	9	(25)
Comprehensive income	$ 10,187	$ 11,647	$ 30,996	$ 30,012