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 (Detail) - USD ($) $ in Thousands	Feb. 28, 2017	Nov. 30, 2016
Financial instruments owned:
Loans and other receivables	$ 1,078,397	$ 1,325,938
Loans and other receivables on nonaccrual status and/or greater than 90 days past due	242,022	205,746
Loans and other receivables greater than 90 days past due	68,500	64,600
Long-term debt	$ 7,582	$ 20,202