Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 331,179	$ 300,005
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(24,016)	26,946
Change in fair value of interest rate lock agreements, net of tax (benefit) expense of $(12,554) and $3,672, respectively	(36,679)	10,842
Amortization of interest rate lock agreements, net of tax benefit of $148 and $116, respectively	(459)	(358)
Other comprehensive (loss) income, net of tax (benefit) expense of $(12,406) and $3,788, respectively	(61,154)	37,430
Comprehensive income	$ 270,025	$ 337,435