Income Taxes - Schedule of Components of Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Current:
Federal	$ 327,616	$ 248,413	$ 162,269
State and local	79,583	56,589	32,431
Foreign	25,344	13,205	16,676
Current income tax expense	432,543	318,207	211,376
Deferred	(30,500)	26,931	51,635
Income taxes	$ 402,043	$ 345,138	$ 263,011