Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 22,030	$ 24,552	$ 65,786	$ 73,659
Income taxes	(70,183)	(43,619)	(176,020)	(112,510)
Net income	315,448	258,384	941,296	843,246
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Unrealized (Loss) Income on Interest Rate Locks
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income taxes	(149)	(116)	(445)	(347)
Net income	459	358	1,378	1,075
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Unrealized (Loss) Income on Interest Rate Locks | Interest Rate Locks
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 608	$ 474	$ 1,823	$ 1,422