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Leases - Additional Information (Details)
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Lessee, Lease, Description [Line Items]    
Lease term 8 years 8 years 8 months 12 days
Renewal term 5 years  
Termination period 3 years 10 months 24 days  
Office Building    
Lessee, Lease, Description [Line Items]    
Lease term 10 years 2 months 12 days