Condensed 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	$ 17,807	$ 18,037	$ 53,985	$ 57,569
Other comprehensive income, net of tax
Foreign currency translation adjustments	2,105	7,869	(14,314)	3,729
Reclassification of cumulative translation adjustment associated with liquidated subsidiary	739	0	739	0
Reclassification of cumulative translation adjustment associated with acquisition of business	0	0	0	(216)
Pension liability adjustments, net of tax	(5)	(7)	52	8
Other comprehensive income (loss)	2,839	7,862	(13,523)	3,521
Comprehensive income	$ 20,646	$ 25,899	$ 40,462	$ 61,090