Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency exchange hedge, net of tax	$ (96)	$ (242)	$ (334)	$ (215)
Securities available-for-sale, net of tax	(16)	11	16	(14)
Other Income, net of tax	$ (7)	$ 0	$ (19)	$ (299)