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Revenues - Schedule of Contract Asset and Liability Balances (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]        
Contract With Customer, Liability, Revenue Recognized, Billed Prior Period $ 200 $ 700 $ 600  
Contract assets 6,187 6,187   $ 5,675
Contract liabilities (400) (400)   $ (650)
Contract With Customer, Asset, Revenue Recognized $ 100 $ 500