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Leases - Schedule of Rent Expenses (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Leases [Abstract]      
Operating lease expense $ 3,095    
Variable and short-term lease expense 270    
Rent expense $ 3,364 $ 3,700 $ 3,600