Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017		Mar. 31, 2016
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax		$ 66		$ 100
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax		504		0
Net earnings		10,568		22,792
Currency translation		129		721
Postretirement plans (1)	[1]	108		120
Short-term investments (2)		(936)	[2]	0
Comprehensive income		$ 9,869		$ 23,633

[1] Net of tax effect of $0.1 million for each of the three month periods ended March 31, 2017 and 2016.

[2] Net of tax effect of $0.5 million for the three months ended March 31, 2017.