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	Aug. 31, 2022	Nov. 30, 2021
Financial instruments owned:
Loans and other receivables	$ 5,741,428	$ 5,600,648
Loans and other receivables on nonaccrual status and/or 90 days or greater past due	226,577	64,203
Long-term debt	361,044	(38,391)
Other secured financings	2,913	3,432
Loans and other receivables 90 days or greater past due	$ 93,100	$ 19,700