Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income	$ 6,816	$ (448)	$ 13,217	$ 6,463
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	569	(2,264)	(3,017)	2,410
Change in derivatives qualifying as hedges, net of taxes of $(274), $199, $(233), and $136	508	(370)	432	(252)
Change in pension liability and postretirement obligation, net of taxes of $9, $(11), $(111), and $82	(17)	20	207	(153)
Adjustments for unrealized gain (loss) on investments:
Unrealized holding gain (losses) arising during the period, net of taxes of $(33), $223, $(98), and $331	61	(433)	183	(614)
Reclassification adjustment for gain (loss) included in net income, net of taxes of $7, $(79), $40, and $(82)	(14)	147	(75)	151
Net change in unrealized gain (loss) on investments	47	(286)	108	(463)
Total other comprehensive income (loss)	1,107	(2,900)	(2,270)	1,542
Comprehensive income	$ 7,923	$ (3,348)	$ 10,947	$ 8,005