XML 16 R6.htm IDEA: XBRL DOCUMENT v3.21.2
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) (Unaudited) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]        
Other comprehensive income (loss), taxes $ 0 $ 0 $ 0 $ 0