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Redeemable Convertible Preferred Stock (Tables)
 12 Months Ended
Dec. 31, 2021
Temporary Equity Disclosure [Abstract]  
Temporary Equity
There were no shares of Redeemable Convertible Preferred Stock outstanding as of December 31, 2021. Redeemable Convertible Preferred Stock as of December 31, 2020 consisted of the following (in thousands, except share data):
Redeemable Convertible Preferred StockShares AuthorizedShares Issued and OutstandingAmountAggregate Liquidation Preference
Series A-155,399,943 55,399,943 $51,811 $55,000 
Series A-264,718,940 49,700,364 46,480 49,342 
Series B41,937,960 41,937,960 118,824 204,302 
Series C24,497,317 24,496,946 117,324 121,397 
Total Redeemable Convertible Preferred Stock186,554,160 171,535,213 $334,439 $430,041