Consolidated Statements of Earnings (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		8 Months Ended	9 Months Ended
	Aug. 31, 2011	Aug. 31, 2010	Aug. 31, 2010	Aug. 31, 2011
Revenues:
Commissions	$ 154,896	$ 118,571	$ 347,527	$ 404,108
Principal transactions	(74,003)	71,044	317,686	391,464
Investment banking	293,750	246,193	598,450	861,230
Asset management fees and investment income from managed funds	3,086	786	11,804	37,501
Interest	353,006	239,557	625,725	930,647
Other	63,369	16,879	44,240	105,948
Total revenues	794,104	693,030	1,945,432	2,730,898
Interest expense	284,822	175,761	432,995	736,068
Net revenues	509,282	517,269	1,512,437	1,994,830
Interest on mandatorily redeemable preferred interest of consolidated subsidiaries	(14,671)	(2,537)	(26)	6,183
Net revenues, less mandatorily redeemable preferred interest	523,953	519,806	1,512,463	1,988,647
Non-interest expenses:
Compensation and benefits	299,640	308,797	877,204	1,174,468
Floor brokerage and clearing fees	32,959	30,111	84,199	92,475
Technology and communications	60,039	46,135	114,189	153,563
Occupancy and equipment rental	22,581	18,433	49,448	60,997
Business development	21,853	17,420	42,405	64,248
Professional services	19,061	13,008	34,702	48,437
Other	12,582	9,404	37,222	45,805
Total non-interest expenses	468,715	443,308	1,239,369	1,639,993
Earnings before income taxes	55,238	76,498	273,094	348,654
Income tax expense	1,228	33,873	110,277	107,899
Net earnings	54,010	42,625	162,817	240,755
Net (loss) earnings to noncontrolling interests	(14,265)	(2,129)	1,865	4,523
Net earnings to common shareholders	$ 68,275	$ 44,754	$ 160,952	$ 236,232
Earnings per common share:
Basic	$ 0.30	$ 0.22	$ 0.79	$ 1.07
Diluted	$ 0.30	$ 0.22	$ 0.79	$ 1.07
Weighted average common shares:
Basic	218,426	195,601	196,943	209,544
Diluted	222,541	195,612	201,062	213,661