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Related Parties (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Related Party Transactions [Abstract]      
Sales to affiliates $ 566 $ 653  
Payments to affiliates 73 $ 59  
Due from affiliates 105   $ 342
Due to related parties $ 0   $ 0