CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Net income	$ 23,082	$ 14,533
Other comprehensive income:
Foreign currency translation adjustments	(15,632)	(3,680)
Deferred compensation and pension plan adjustments, net of tax	447	487
Unrealized losses on marketable securities, net of tax	(4)	(6)
Comprehensive income	$ 7,893	$ 11,334