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Fair Value Disclosures - Fair Value Option Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Financial instruments owned:
Loans and other receivables	$ (28,722)	$ 13,283
Other secured financings:
Financial instruments sold, not yet purchased and Long-term debt
Other changes in fair value	(309)	1,938
Long-term debt
Financial instruments sold, not yet purchased and Long-term debt
Other changes in fair value	(58,916)	16,944
Changes in instrument-specific credit risk	$ 77,896	$ 37,898

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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