Fair Value Disclosures - Summary of Gains (Losses) Due to Changes in Instrument Specific Credit Risk for Loans and Other Receivables and Loan Commitments Measured at Fair Value under Fair Value Option (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Financial instruments owned:
Loans and other receivables	$ (9,040)	$ (7,273)	$ 4,828	$ 17,600
Long-term debt
Financial instruments sold, not yet purchased and Long-term debt
Changes in instrument specific credit risk	(5,824)	20,478	88,309	(103,751)
Other changes in fair value	62,476	(26,093)	318,408	61,695
Loans
Financial instruments sold, not yet purchased and Long-term debt
Changes in instrument specific credit risk	$ (832)	$ (574)	$ (121)	$ 945