Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 11,854	$ 10,824
Other comprehensive income:
Foreign currency translation adjustments	(627)	(257)
Pension and postretirement benefits, net of tax	1	(12)
Comprehensive income	$ 11,228	$ 10,555

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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