Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATMENTS OF COMPREHENSIVE LOSS (PARENTHETICAL)

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CONDENSED CONSOLIDATED STATMENTS OF COMPREHENSIVE LOSS (PARENTHETICAL) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Statement of Comprehensive Income [Abstract]        
Unrealized loss arising during holding period, tax benefit (expense) $ 0 $ 0 $ 0 $ 0