XML 18 R6.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Statement of Comprehensive Income [Abstract]        
Unrealized loss on marketable securities, tax $ 0 $ 0 $ 0 $ 0
Foreign currency translation gain, tax $ 0 $ 0 $ 0 $ 0