Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Income	$ 13,130	$ 8,780	$ 34,970	$ 27,560
Other comprehensive income
Defined benefit pension and postretirement plans, net of tax	170	140	500	440
Foreign currency translation	910	(1,550)	4,640	(8,290)
Derivative instruments, net of tax	2,540	630	2,520	(3,660)
Total other comprehensive income (loss)	3,620	(780)	7,660	(11,510)
Total comprehensive income	$ 16,750	$ 8,000	$ 42,630	$ 16,050