Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Fair Value, Contingent Liability (Details)

v3.21.1
Basis of Presentation and Summary of Significant Accounting Policies - Fair Value, Contingent Liability (Details)
$ in Thousands, shares in Millions
 12 Months Ended
Dec. 21, 2020
USD ($)
item
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Recognition of contingent earnout share liability $ 248,900 $ (248,878)  
Gain on fair value change in contingent earnout share liability   $ (115,375)  
Number of tranches for issuance | item 3    
Earn Out Shares [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Number of shares issued or issuable | shares 15.0 15.0  
Liabilities, ending fair value   $ 133,500  
Earn Out Shares [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Recognition of contingent earnout share liability   248,878  
Gain on fair value change in contingent earnout share liability   (115,375)  
Liabilities, ending fair value   133,503  
Related party derivative liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Liabilities, beginning fair value   17,797  
Addition during the year     $ 17,797
Change in fair value during the year   (17,797)  
Liabilities, ending fair value     17,797
Recurring | Earn Out Shares [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Liabilities, ending fair value   133,503  
Recurring | Related party derivative liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Liabilities, beginning fair value   17,797  
Liabilities, ending fair value     17,797
Recurring | Money market funds      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets   702,422 28,182
Recurring | Level 1 | Money market funds      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets   702,422 28,182
Recurring | Level 3 | Earn Out Shares [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Liabilities, ending fair value   133,503  
Recurring | Level 3 | Related party derivative liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Liabilities, beginning fair value   $ 17,797  
Liabilities, ending fair value     $ 17,797