Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 25,208	$ 10,964	$ 9,620
Other comprehensive income, net of income tax:
Unrealized gain (loss) and foreign currency translation arising during the period on foreign currency denominated available-for-sale securities		(4)	19
Reclassification adjustment for losses included in net income		71
Net change		67	19
Foreign currency translation	(912)	1,121	625
Total other comprehensive income (loss)	(912)	1,188	644
Total comprehensive income	$ 24,296	$ 12,152	$ 10,264