Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ 23,425	$ 22,817	$ (31,901)
Other comprehensive income (loss):
Foreign currency translation adjustments	(585)	(2,273)	4,977
Unrealized gain on investments, net of tax	0	41	33
Unrealized gain (loss) on derivative, net of tax	(3,716)	(1,362)	1,192
Other	(1,334)	619	(175)
Other comprehensive loss	(5,635)	(2,975)	6,027
Comprehensive income (loss)	$ 17,790	$ 19,842	$ (25,874)