Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Feb. 28, 2017	Nov. 30, 2016
Cash and cash equivalents	$ 4,080,381	$ 3,529,069
Pledged financial instruments	10,184,574	9,706,881
Financial instruments, owned, at fair value	13,252,736	13,809,512
Fees, interest and other	312,029	310,894
Other assets	1,377,636	1,229,551
Other secured financings at fair value	34,187	41,768
Other secured financings	594,120	755,576
Accrued expenses and other liabilities	1,006,943	1,248,200
Long-term debt at fair value	310,057	248,856
Variable Interest Entities [Member]
Cash and cash equivalents	4,635	16,805
Financial instruments, owned, at fair value	53,122	87,153
Fees, interest and other	248	1,547
Other assets	5	0
Other secured financings	594,087	755,544
Accrued expenses and other liabilities	$ 556	$ 735