Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 294,669	$ 284,857	$ 625,848	$ 584,862
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(7,472)	2,960	(31,488)	29,906
Change in fair value of interest rate lock agreements, net of tax expense (benefit) of $3,744, $5,400, $(8,810) and $9,072, respectively	10,940	15,942	(25,739)	26,784
Amortization of interest rate lock agreements, net of tax benefit of $148, $115, $296 and $231, respectively	(460)	(359)	(919)	(717)
Other comprehensive income (loss), net of tax expense (benefit) of $3,892, $5,515, $(8,514) and $9,303, respectively	3,008	18,543	(58,146)	55,973
Comprehensive income	$ 297,677	$ 303,400	$ 567,702	$ 640,835