Derivative Instruments and Hedging Activities - Additional Information (Details) $ in Thousands	3 Months Ended	12 Months Ended
Aug. 31, 2026 USD ($) agreement counterparty	May 31, 2026 USD ($) counterparty
Derivative [Line Items]
Notional amount	$ 5,475,490	$ 5,550,124
Number of counterparties subject to ratings trigger and early termination provision \| counterparty	1
Notional Amount	$ 6,602,833	6,565,533
Treasury rate lock—cash flow hedge \| Cash Flow Hedging
Derivative [Line Items]
Number of agreements executed \| agreement	1
Notional amount	$ 100,000
AOCI, cash flow hedge, cumulative gain (loss), after tax	1,000
Interest rate swaps
Derivative [Line Items]
Notional amount	$ 5,475,490	$ 5,550,124
Number of active derivative counterparties \| counterparty	12	12
Number of active derivative counterparties	$ 605,777	$ 523,544
Interest rate swaps \| Derivative \| Derivative Counterparty Concentration Risk
Derivative [Line Items]
Concentration risk, percentage	25.00%	25.00%
Interest Rate Swap Subject To Rating Trigger and Early Termination Provision
Derivative [Line Items]
Notional Amount	$ 572,000
Unrealized gain position	47,000
Interest Rate Swap with Rating Trigger
Derivative [Line Items]
Notional Amount	4,732,325
Derivative, net liability position	$ 1,000

Derivative Amount, Unrealized Gain (Loss) Position

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Number Of Active Derivative Counterparties

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Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Nominal or face amount used to calculate payments on the derivative asset.

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Fair value, after effect of master netting arrangement and deduction of obligation to return financial collateral not offset and financial instrument subject to master netting arrangement not offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative not subject to master netting arrangement or similar agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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Nominal or face amount used to calculate payment on derivative.

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The number of derivative instruments of a particular group held by the entity.

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