Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013		Jun. 30, 2012
Net income	$ 26,648	$ 22,963	$ 41,442		$ 40,526
Other comprehensive income (loss):
Pension liability adjustments (net of tax of $69 and ($11), for the three months ended 2013 and 2012, and $172 and $34 for the six months ended 2013 and 2012, respectively)	(131)	59	(325)	[1]	(7)
Unrealized (loss) gain on investments	(540)	1,308	1,078		3,120
Foreign currency translation adjustments	(8,021)	(9,648)	(13,271)		(2,252)
Comprehensive income	$ 17,956	$ 14,682	$ 28,924		$ 41,387

[1] Balances are net of tax of $12,003 and $11,819 for 2013 and 2012, respectively.