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Leases - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]    
Rent expense   $ 1.0
Minimum    
Lessee, Lease, Description [Line Items]    
Operating leases contract terms 1 year  
Finance leases contract terms 1 year  
Maximum    
Lessee, Lease, Description [Line Items]    
Operating leases contract terms 5 years  
Finance leases contract terms 4 years  
Office Equipment    
Lessee, Lease, Description [Line Items]    
Useful life 5 years