Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2015
Net earnings	$ 217,937	$ 157,628	$ 87,256
Other comprehensive income (loss):
Foreign currency translation	1,342	4,716	(34,229)
Pension liability adjustment, net of tax	2,242	(2,058)	(3,738)
Cash flow hedges, net of tax	(2,822)	22,208	(11,653)
Other comprehensive income (loss)	762	24,866	(49,620)
Comprehensive income	218,699	182,494	37,636
Comprehensive income attributable to noncontrolling interests	13,394	16,640	7,974
Comprehensive income attributable to controlling interest	$ 205,305	$ 165,854	$ 29,662