Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Nov. 30, 2024	Aug. 31, 2024	Nov. 30, 2023	Aug. 31, 2023	Nov. 30, 2024	Nov. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income taxes	$ (117,192)		$ (99,249)		$ (201,821)	$ (190,598)
Net income	448,495	$ 452,033	374,613	$ 385,085	900,528	759,698
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Unrealized Income on Interest Rate Locks
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income taxes	(513)		(503)		(1,026)	(990)
Net income	1,523		1,495		3,046	2,937
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Unrealized Income on Interest Rate Locks | Interest Rate Locks
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 2,036		$ 1,998		$ 4,072	$ 3,927