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Leases (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Leases [Abstract]      
Right-of-use assets, net $ 9,279   $ 2,657
Operating lease liabilities $ 9,982    
Weighted-average remaining lease term 6 years    
Weighted-average discount rate 9.10%    
Operating lease payments $ 500 $ 1,600  
Operating lease costs $ 700 $ 1,400