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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]  
Summary of Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash within the condensed consolidated balance sheets that sum to the total of the same on the condensed consolidated statement of cash flows (in thousands):

 

   June 30, 2021   December 31, 2020 
Cash and cash equivalents  $406,740   $134,942 
Restricted cash   5,404    1,279 
Total cash, cash equivalents and restricted cash  $412,144   $136,221 
Summary of Calculation of Basic and Diluted Net Loss Per Share

The following table presents the calculation of basic and diluted net loss per share (in thousands, except share and per share data):

 

                 
   Three Months Ended June 30,   Six Months Ended June 30, 
   2021   2020   2021   2020 
Basic loss per share:                    
Net loss  $(94,930)  $(73,604)  $(165,116)  $(129,947)
Less: Net loss attributable to non-controlling interest   15    682    91    1,555 
Less: Deemed dividend - beneficial conversion feature on preferred stock   -    -    -    (171)
Net loss attributable to common stockholders   (94,915)   (72,922)   (165,025)   (128,563)
                     
Shares used in computation:                    
Weighted-average common shares outstanding   140,596,001    35,045,390    129,591,310    32,390,829 
Basic and diluted loss per share  $(0.68)  $(2.08)  $(1.27)  $(3.97)
Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share

The following common share equivalents are excluded from the calculation of weighted average common shares outstanding because their inclusion would have been anti-dilutive:

 

   Three Months Ended June 30,   Six Months Ended June 30, 
   2021   2020   2021   2020 
Common stock purchase warrants   1,750,843    603,576    1,750,843    1,147,844 
Convertible preferred shares   -    64,355,375    -    32,405,688 
Stock options   16,630,240    6,377,997    16,630,240    6,361,982 
Unvested restricted stock units   1,243,757    -    1,243,757    - 
Convertible notes variable settlement feature   6,966,078    536,164    6,966,078    536,164 
Total   26,590,918    71,873,112    26,590,918    40,451,678