Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 29,463	$ 25,208	$ 10,964
Other comprehensive income, net of income tax:
Unrealized loss and foreign currency translation arising during the period on foreign currency denominated available-for-sale securities			(4)
Reclassification adjustment for losses included in net income			71
Net change			67
Foreign currency translation	(1,194)	(912)	1,121
Total other comprehensive income (loss)	(1,194)	(912)	1,188
Total comprehensive income	$ 28,269	$ 24,296	$ 12,152