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Leases - Additional Information (Details)
 1 Months Ended 12 Months Ended
Oct. 31, 2021
Dec. 31, 2021
USD ($)
ft²
Nov. 30, 2021
Mar. 31, 2021
USD ($)
ft²
Sep. 30, 2020
USD ($)
ft²
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Dec. 31, 2018
ft²
Lessee Lease Description [Line Items]                
Operating leases cancelable and non-cancellable expiration dates           2032    
Operating leases Noncancelable expiration dates           2026    
Operating lease cost           $ 2,800,000 $ 1,300,000  
Variable lease costs           429,000 355,000  
Short-term lease costs           119,000 96,000  
Cash paid for operating leases           $ 1,100,000 $ 989,000  
Operating lease, weighted-average remaining lease term   9 years 10 months 9 days       9 years 10 months 9 days 3 years 1 month 28 days  
Operating lease, weighted-average discount rate   6.90%       6.90% 7.80%  
Gain on lease remeasurement           $ 539,000    
Operating lease, aggregate monthly payments to lessor   $ 51,884,000       51,884,000    
Letter of credit provided to lessor   $ 408,000       408,000 $ 312,000  
Other Income (Expense), Net                
Lessee Lease Description [Line Items]                
Gain on lease remeasurement           $ 539,000    
2020 Lease                
Lessee Lease Description [Line Items]                
Office space leases | ft²         59,407      
Lease commencement month and year         2021-08      
Operating lease initial term         10 years 6 months      
Operating lease, aggregate monthly payments to lessor         $ 39,500,000      
Tenant improvement allowance         $ 13,400,000      
Term for cancellation of lease         84 months      
Notice period for cancellation of lease         12 months      
Operating lease cancellation payment         $ 1,900,000      
2020 Lease | Letter of Credit                
Lessee Lease Description [Line Items]                
Letter of credit provided to lessor         $ 312,000      
Line of credit facility, expiration date         Oct. 31, 2031      
2018 Lease                
Lessee Lease Description [Line Items]                
Office space leases | ft²               16,153
Lease expiration date May 31, 2024   Apr. 30, 2022          
First Amendment to 2020 Lease                
Lessee Lease Description [Line Items]                
Office space leases | ft²       18,421        
Operating lease, lease payments to lessor       $ 96,000        
Tenant improvement allowance       $ 3,400,000        
Term for cancellation of lease       84 months        
Operating lease cancellation payment       $ 2,500,000        
First Amendment to 2020 Lease | Letter of Credit                
Lessee Lease Description [Line Items]                
Letter of credit provided to lessor       $ 408,000        
2021 Lease                
Lessee Lease Description [Line Items]                
Office space leases | ft²   29,542       29,542    
Lease commencement month and year   2022-07            
Operating lease initial term   124 months       124 months    
Operating lease option to extend           5 years    
Operating lease existence of option to extend [true false]           true    
Operating lease, aggregate monthly payments to lessor   $ 34,400,000       $ 34,400,000    
Tenant improvement allowance   8,200,000            
2021 Lease | Other Assets                
Lessee Lease Description [Line Items]                
Security deposit paid   $ 874,000       $ 874,000    
California | 2018 Lease                
Lessee Lease Description [Line Items]                
Office space leases | ft²               11,000