Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,851	$ 7,975	$ 16,551	$ 27,338
Other comprehensive income:
Foreign currency translation adjustments	106	310	(281)	1,650
Pension and postretirement benefits, net of tax	7,396	(25)	13,168	129
Comprehensive income	$ 10,353	$ 8,260	$ 29,438	$ 29,117

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

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