Quarterly report pursuant to Section 13 or 15(d)

Convertible Notes and PPP Term Note - Convertible Notes (Details)

v3.21.2
Convertible Notes and PPP Term Note - Convertible Notes (Details) - Convertible notes - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Beginning balance $ 182,200,000 $ 197,700,000 $ 197,700,000
Change in fair value 8,500,000 (15,500,000)  
Ending balance 200,900,000 182,200,000 200,900,000
Credit Risk      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Change in fair value attributable to credit risk $ 10,200,000 $ 0 $ 10,200,000