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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income	$ 25,188	$ 35,815	$ 39,979
Cumulative translation adjustments	3,111	88	(2,922)
Pension and postretirement medical liability adjustments, net of tax	(4,951)	(5,202)	(5,922)
Other comprehensive (loss)	(1,840)	(5,114)	(8,844)
Comprehensive income	$ 23,348	$ 30,701	$ 31,135

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