Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Basis of Presentation and Summary of Significant Accounting Policies - Fair Value, Contingent Liability (Details) - USD ($)
$ in Thousands, shares in Millions
 3 Months Ended 9 Months Ended
Dec. 31, 2020
Dec. 21, 2020
Sep. 30, 2021
Mar. 31, 2021
Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Standby Letter Of Credit In Restricted Cash     $ 800   $ 800
Standby Letter Of Credit In Restricted Cash, Term         2 years
Refundable customer deposits     600   $ 600
Addition/Recognition of contingent earnout share liability   $ 248,900      
Gain on fair value change in contingent earnout share liability     (25,764)   (101,166)
Change in fair value during the period, warrants $ (3,100)       1,639
Conversion of private placement warrants to public warrants       $ (8,252) (8,252)
Earn Out Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       133,500 133,500
Liabilities, ending fair value 133,500   32,300   32,300
Earn Out Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       133,503 133,503
Gain on fair value change in contingent earnout share liability         (101,166)
Liabilities, ending fair value 133,503   32,337   32,337
Warrant Liability [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       6,613 6,613
Change in fair value during the period, warrants         1,639
Conversion of private placement warrants to public warrants         (8,252)
Liabilities, ending fair value 6,613        
Recurring | Earn Out Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       133,503 133,503
Liabilities, ending fair value 133,503   32,337   32,337
Recurring | Warrant Liability [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       6,613 6,613
Liabilities, ending fair value 6,613        
Recurring | Money market funds          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Assets 702,422   416,314   416,314
Recurring | Level 1 | Money market funds          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Assets 702,422   416,314   416,314
Recurring | Level 2 | Warrant Liability [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       6,613 6,613
Liabilities, ending fair value 6,613        
Recurring | Level 3 | Earn Out Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liabilities, beginning fair value       $ 133,503 133,503
Liabilities, ending fair value $ 133,503   $ 32,337   $ 32,337
Business Combination | Earn Out Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Number of shares issued or issuable         15.0