Fair Value Disclosures - Summary of Amount by Which Contractual Principal Exceeds Fair Value for Loans and Other Receivables Measured at Fair Value under Fair Value Option (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Nov. 30, 2021
Financial instruments owned:
Loans and other receivables	$ 5,533,863	$ 5,600,648
Loans and other receivables on nonaccrual status and/or 90 days or greater past due	51,601	64,203
Long-term debt	107,282	(38,391)
Other secured financings	3,432	3,432
Loans and other receivables 90 days or greater past due	$ 16,800	$ 19,700