Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
May 31, 2020	May 31, 2019	May 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 84,444	$ 163,273	$ 200,850
Other comprehensive income (loss):
Foreign currency translation, net of tax	10,497	(14,772)	12,744
Pension liability adjustment, net of tax	(4,030)	(1,785)	1,566
Cash flow hedges, net of tax	1,780	(12,447)	959
Other comprehensive income (loss)	8,247	(29,004)	15,269
Comprehensive income	92,691	134,269	216,119
Comprehensive income attributable to noncontrolling interests	5,648	9,698	6,429
Comprehensive income attributable to controlling interest	$ 87,043	$ 124,571	$ 209,690

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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