General form of registration statement for all companies including face-amount certificate companies

Income Taxes (Details)

v3.22.1
Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Taxes (Details) [Line Items]    
Federal statutory income tax rate 21.00% 21.00%
Valuation allowance $ 81,860 $ 59,099
Change in the valuation allowance 22,761 7,566
Operating loss carryforwards 517,700 $ 377,300
Federal research and development credit carryforwards for income tax expense $ 1,200  
Current carryforwards expiration term If not used, the current carryforwards will expire beginning in 2034.  
State [Member]    
Income Taxes (Details) [Line Items]    
Expiration term U.S. federal net operating loss carryforwards begin to expire in 2033, and state operating loss carryforwards begin to expire in 2027.  
U.S. Federal [Member]    
Income Taxes (Details) [Line Items]    
Expiration term $248,600