Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Net income	$ 14,652	$ 15,237
Other comprehensive loss, net of tax: currency translation adjustments	(3,058)	(2,778)
Other comprehensive income, net of tax: unrealized gain on marketable securities	562
Total comprehensive income	$ 12,156	$ 12,459