Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 21,854	$ 24,550
Income taxes	(41,124)	(25,215)
Net income	331,179	300,005
Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Unrealized Loss on Interest Rate Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income taxes	(148)	(116)
Net income	459	358
Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Unrealized Loss on Interest Rate Hedges | Interest Rate Locks
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 607	$ 474