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Commitments and Contingencies - Information Regarding Operating Leases (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating lease right-of-use assets $ 12,143 $ 13,860
Operating lease liabilities $ 12,482 $ 14,235
Weighted-average remaining lease term (in years) 5 years 1 month 6 days  
Weighted-average discount rate 4.30%