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. 29, 2020	Nov. 30, 2019
Financial instruments owned:
Loans and other receivables	$ 1,551,028	$ 1,546,516
Loans and other receivables on nonaccrual status and/or 90 days or greater past due	267,678	197,215
Long-term debt and short-term borrowings	72,301	74,408
Loans and other receivables 90 days or greater past due	$ 29,100	$ 22,200