Derivative Instruments and Hedging Activities - Additional Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Feb. 28, 2026 USD ($) counterparty	May 31, 2025 USD ($) counterparty
Derivative [Line Items]
Number of counterparties subject to ratings trigger and early termination provision | counterparty	1
Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 6,257,481	$ 7,252,235
Number of active derivative counterparties | counterparty	12	12
Number of active derivative counterparties	$ 372,327	$ 506,049
Interest rate swaps | Derivative | Derivative Counterparty Concentration Risk
Derivative [Line Items]
Concentration risk, percentage	27.00%	25.00%
Interest Rate Swap Subject To Rating Trigger and Early Termination Provision
Derivative [Line Items]
Notional Amount	$ 429,000
Unrealized gain position	26,000
Interest Rate Swap with Rating Trigger
Derivative [Line Items]
Notional Amount	4,284,456
Derivative, net liability position	$ 2,000