Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Feb. 29, 2016	Nov. 30, 2015
Cash and cash equivalents	$ 2,599,637	$ 3,510,163
Financial instruments owned, at fair value	11,174,383	12,207,123
Financial instruments owned, at fair value	13,629,559	16,559,116
Fees, interest and other	275,117	260,924
Other assets	1,477,541	1,072,411
Other secured financings	897,344	762,909
Accrued expenses and other liabilities	781,707	1,049,019
Long-term debt at fair value	37,118	0
Long-term debt	5,698,169	5,640,722
Variable Interest Entities [Member]
Cash and cash equivalents	2,492	2,015
Financial instruments owned, at fair value	79,667	68,951
Fees, interest and other	476	329
Other assets	27,332	0
Other secured financings	897,344	762,909
Accrued expenses and other liabilities	2,652	893
Long-term debt	$ 22,207	$ 0