Quarterly report pursuant to Section 13 or 15(d)

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical)

v3.21.2
UNAUDITED CONDENSED 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
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS        
Foreign currency translation adjustments, tax $ 0 $ 0 $ 0 $ 0
Foreign currency gains (losses) on intercompany loan of a long-term investment nature, tax 0 0 0 0
Unrealized holding gains (losses) on available-for-sale debt securities, tax $ 0 $ 0 $ 0 $ 0