Noncontrolling Interests and Mandatorily Redeemable Preferred Interests of Consolidated Subsidiaries - Noncontrolling Interests (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013		Nov. 30, 2012
Noncontrolling Interest [Line Items]
Noncontrolling interests	$ 356,180		$ 346,738
JSOP [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests	311,510		303,178
JESOP [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests	36,209		35,239
Other [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests	$ 8,461	[1]	$ 8,321	[1]

[1] Other includes consolidated asset management entities and investment vehicles set up for the benefit of our employees or clients.