Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) (Parenthetical)

v3.19.2
Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Statement of Comprehensive Income [Abstract]        
Taxes on unrealized gains (losses) on marketable securities $ 0 $ 0 $ 0 $ 0