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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
Common Stock
At The Market Offering.
Common Stock
Public Offering
Common Stock
Optional Stock Purchase Agreement
Common Stock
Additional Paid-In Capital
At The Market Offering.
Additional Paid-In Capital
Public Offering
Additional Paid-In Capital
Optional Stock Purchase Agreement
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
At The Market Offering.
Public Offering
Optional Stock Purchase Agreement
Total
Beginning Balances at Dec. 31, 2020       $ 7,000       $ 1,043,991,000 $ (270,000) $ (762,754,000)       $ 280,974,000
Beginning Balances (in shares) at Dec. 31, 2020       72,513,348                    
Net loss                   (287,100,000)       (287,100,000)
Issuance of common stock upon exercise of stock options               10,410,000           10,410,000
Issuance of common stock upon exercise of stock options (in shares)       1,316,361                    
Issuance of common stock upon vesting of restricted stock units ("RSUs") (in shares)       465,930                    
Issuance of common stock in connection with Surface Acquisition:(1)                            
Stock-based compensation expense               51,290,000           51,290,000
Issuance of common stock under Offering, net of issuance costs               40,903,000           40,903,000
Issuance of common stock under Offering, net of issuance costs (in shares)       2,491,988                    
Issuance of common stock under the employee stock purchase plan ("ESPP")               3,002,000           3,002,000
Issuance of common stock under the employee stock purchase plan ("ESPP") (in shares)       238,934                    
Taxes paid related to net share settlement of RSUs               (1,753,000)           (1,753,000)
Taxes paid related to net share settlement of RSUs (in shares)       (96,465)                    
Ending Balances at Dec. 31, 2021       $ 7,000       1,147,843,000 (270,000) (1,049,854,000)       97,726,000
Ending Balances (in shares) at Dec. 31, 2021       76,930,096                    
Net loss                   (291,754,000)       (291,754,000)
Issuance of common stock upon exercise of stock options               691,000           691,000
Issuance of common stock upon exercise of stock options (in shares)       141,897                    
Issuance of common stock upon vesting of restricted stock units ("RSUs") (in shares)       806,854                    
Issuance of common stock in connection with Surface Acquisition:(1)                            
Stock-based compensation expense               51,188,000           51,188,000
Issuance of common stock under ATM Offering, net of issuance costs $ 1,000       $ 6,133,000           $ 6,134,000      
Issuance of common stock under Offering, net of issuance costs (in shares) 916,884                   916,884      
Issuance of common stock under the employee stock purchase plan ("ESPP")               2,320,000           2,320,000
Issuance of common stock under the employee stock purchase plan ("ESPP") (in shares)       347,883                    
Taxes paid related to net share settlement of RSUs               (3,744,000)           (3,744,000)
Taxes paid related to net share settlement of RSUs (in shares)       (292,098)                    
Other comprehensive gain (loss), net of tax                 21,000         21,000
Ending Balances at Dec. 31, 2022       $ 8,000       1,204,431,000 (249,000) (1,341,608,000)       $ (137,418,000)
Ending Balances (in shares) at Dec. 31, 2022       78,851,516                   78,851,516
Net loss                   (237,892,000)       $ (237,892,000)
Issuance of common stock upon exercise of stock options               694,000           694,000
Issuance of common stock upon exercise of stock options (in shares)       430,504                    
Issuance of common stock upon vesting of restricted stock units ("RSUs") (in shares)       1,280,901                    
Issuance of common stock in connection with Surface Acquisition:(1)                            
Issuance to Surface shareholders for acquisition       $ 1,000       58,540,000           58,541,000
Issuance to Surface shareholders for acquisition (in shares)       11,971,460                    
Accelerated vesting of equity awards (in shares)       261,239                    
Accelerated vesting of equity awards               1,053,000           1,053,000
Taxes paid related to net share settlement of equity awards (in shares)       (65,732)                    
Taxes paid related to net share settlement of equity awards               (347,000)           (347,000)
Stock-based compensation expense               43,540,000           43,540,000
Issuance of common stock under ATM Offering, net of issuance costs $ 3,559,761                          
Issuance of common stock under Offering, net of issuance costs $ 1,000 $ 1,000     $ 18,316,000 $ 53,624,000 $ 8,179,000       $ 18,317,000 $ 53,625,000 $ 8,179,000  
Issuance of common stock under Offering, net of issuance costs (in shares)   13,529,411 2,225,513               3,559,761      
Issuance of common stock under the employee stock purchase plan ("ESPP")               1,809,000           1,809,000
Issuance of common stock under the employee stock purchase plan ("ESPP") (in shares)       630,348                    
Taxes paid related to net share settlement of RSUs               (3,527,000)           (3,527,000)
Taxes paid related to net share settlement of RSUs (in shares)       (459,661)                    
Other comprehensive gain (loss), net of tax                 1,000         1,000
Ending Balances at Dec. 31, 2023       $ 11,000       $ 1,386,312,000 $ (248,000) $ (1,579,500,000)       $ (193,425,000)
Ending Balances (in shares) at Dec. 31, 2023       112,215,260                   112,215,260