Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2020	Aug. 31, 2019
Revenues:
Revenues	$ 1,825,499	$ 1,223,156	$ 4,895,294	$ 3,928,539
Interest expense	21,512	23,663	64,226	69,819
Net revenues	1,616,170	856,778	4,150,087	2,786,878
Expenses:
Compensation and benefits	760,837	446,882	2,029,497	1,367,034
Cost of sales	82,657	85,773	235,871	233,109
Floor brokerage and clearing fees	66,743	50,858	201,403	163,113
Depreciation and amortization	39,520	39,880	119,356	110,600
Selling, general and other expenses	237,712	268,742	784,668	718,910
Total expenses	1,208,981	915,798	3,435,021	2,662,585
Income (loss) before income taxes and income (loss) related to associated companies	407,189	(59,020)	715,066	124,293
Income (loss) related to associated companies	5,053	72,283	(69,523)	121,766
Income before income taxes	412,242	13,263	645,543	246,059
Income tax provision (benefit)	107,403	(36,131)	185,138	(522,626)
Net income	304,839	49,394	460,405	768,685
Net (income) loss attributable to the noncontrolling interests	324	116	5,033	(759)
Net (income) loss attributable to the redeemable noncontrolling interests	650	242	1,130	(47)
Preferred stock dividends	(1,404)	(1,275)	(4,230)	(3,827)
Net income attributable to Jefferies Financial Group Inc. common shareholders	$ 304,409	$ 48,477	$ 462,338	$ 764,052
Basic earnings per common share attributable to Jefferies Financial Group Inc. common shareholders:
Net income (in dollars per share)	$ 1.08	$ 0.16	$ 1.58	$ 2.44
Diluted earnings per common share attributable to Jefferies Financial Group Inc. common shareholders:
Net income (in dollars per share)	$ 1.07	$ 0.15	$ 1.57	$ 2.41
Commissions and other fees
Revenues:
Revenues	$ 204,032	$ 171,000	$ 626,434	$ 493,560
Principal transactions
Revenues:
Revenues	623,283	(20,920)	1,421,485	465,451
Investment banking
Revenues:
Revenues	615,837	410,796	1,595,330	1,126,479
Interest income
Revenues:
Revenues	219,843	410,467	782,941	1,243,278
Manufacturing revenues
Revenues:
Revenues	119,751	82,565	282,737	248,227
Other
Revenues:
Revenues	42,753	169,248	186,367	351,544
Jefferies Group
Revenues:
Interest expense	$ 209,329	$ 366,378	$ 745,207	$ 1,141,661