Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Aug. 31, 2019	Aug. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 250,812	$ 212,515
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	6,724	(3,019)
Change in fair value of interest rate lock agreements	(29,903)	(3,168)
Amortization of interest rate lock agreements	(295)	(295)
Other comprehensive loss	(23,474)	(6,482)
Comprehensive income	$ 227,338	$ 206,033

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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