Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF NET AND COMPREHENSIVE INCOME (Parenthetical)

v3.10.0.1
CONSOLIDATED STATEMENTS OF NET AND COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Statement [Abstract]      
Marketable securities net change, tax $ (177) $ 139 $ 197
Foreign currency translation (loss) gain, tax $ 0 $ 0 $ 0