Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
May 31, 2019	May 31, 2018	May 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 163,273	$ 200,850	$ 217,937
Other comprehensive income (loss):
Foreign currency translation	(14,772)	12,744	1,342
Pension liability adjustment, net of tax	(1,785)	1,566	2,242
Cash flow hedges, net of tax	(12,447)	959	(2,822)
Other comprehensive income (loss)	(29,004)	15,269	762
Comprehensive income	134,269	216,119	218,699
Comprehensive income attributable to noncontrolling interests	9,698	6,429	13,394
Comprehensive income attributable to controlling interest	$ 124,571	$ 209,690	$ 205,305

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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