Derivative Financial Instruments - Fair Value of OTC Derivatives Assets (Details) $ in Thousands	Feb. 28, 2026 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
A- or higher	$ 180,384
BBB- to BBB+	100,766
BB+ or lower	332,366
Unrated	423,568
Total OTC derivative assets included in Financial instruments owned	$ 1,037,084

Fair Value Of Over Counter Derivatives Assets Counterparty Credit Quality A Or Higher

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Fair value of OTC derivatives assets, counterparty credit quality BB or lower.

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Fair value of OTC derivatives assets, counterparty credit quality BBB- to BBB.

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Fair value of OTC derivatives assets, counterparty credit quality unrated.

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OTC Derivative Assets Included In Financial Instruments Owned

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