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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2020 $ 627,009 $ 16 $ 2,612,663 $ (1,985,706) $ 36
Issuance of common stock from exercise of stock options and units     7,726    
Stock-based compensation     13,321    
Net loss (66,448)     (66,448)  
Other comprehensive loss         (2)
Ending balance at Mar. 31, 2021 581,606 16 2,633,710 (2,052,154) 34
Beginning balance at Dec. 31, 2021 540,894 16 2,694,646 (2,153,576) (192)
Issuance of common stock from exercise of stock options and units     2,467    
Stock-based compensation     14,912    
Net loss (113,056)     (113,056)  
Other comprehensive loss         (420)
Ending balance at Mar. 31, 2022 $ 444,797 $ 16 $ 2,712,025 $ (2,266,632) $ (612)