Related Parties (Tables)

3 Months Ended

Mar. 31, 2020

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

	March 31, 2020		December 31, 2019
	(In thousands)
Trade receivables from DGW KG	$	773	$	522
Trade payables to DGW KG	$	13,895	$	17,871

	Three Months Ended March 31,
	2020		2019
	(In thousands)
Purchased carbon black products from DGW KG	$	21,322	$	22,765
Sales and services provided to DGW KG	$	634	$	663