Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of interest rate locks	$ 101,108	$ 100,740	$ 111,232
Tax expense	(451,921)	(402,043)	(345,138)
Net income	1,812,281	1,571,592	$ 1,348,010
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of interest rate locks	8,144	7,998
Tax expense	(2,052)	(2,014)
Net income	$ 6,092	$ 5,984