Condensed Consolidated Statements Of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 16,454	$ 11,010
Other comprehensive income:
Foreign currency translation gain, net	2,229	4,514
Total comprehensive income	$ 18,683	$ 15,524