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Related Parties (Tables)
3 Months Ended
Mar. 31, 2021
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions
The following is a summary of transactions and balance with affiliates:
 Three Months Ended
 March 31,
2021
March 31,
2020
(in thousands)
Sales to affiliates$566 $653 
Payments to affiliates73 59 
March 31,
2021
December 31,
2020
(in thousands)
Due from affiliates$105 $342 
Due to affiliates— —