Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 116,858	$ 353,319	$ 444,833	$ 935,868
Other comprehensive income (loss):
Net unrealized holding gains (losses) on available for sale securities arising during the period, net of income tax provision (benefit) of $(121), $(8), $(177) and $(27)	(373)	(27)	(546)	(87)
Net change in unrealized holding gains (losses) on available for sale securities, net of income tax provision (benefit) of $(121), $(8), $(177) and $(27)	(373)	(27)	(546)	(87)
Net foreign currency translation adjustments arising during the period, net of income tax provision (benefit) of $(8,305), $1,348, $(8,490) and $4,601	(22,673)	3,393	(22,689)	14,476
Net change in foreign currency translation adjustments, net of income tax provision (benefit) of $(8,305), $1,348, $(8,490) and $4,601	(22,673)	3,393	(22,689)	14,476
Net change in instrument-specific credit risk arising during the period, net of income tax provision (benefit) of $11,508, $(6,327), $24,734 and $(28,509)	35,764	(18,948)	77,176	(88,162)
Less: reclassification adjustment for changes in instrument-specific credit risk included in net income, net of income tax provision (benefit) of $(1), $849, $(8) and $920	2	(2,637)	24	(2,859)
Net change in instrument-specific credit risk gains (losses), net of income tax provision (benefit) of $11,509, $(7,176), $24,742 and $(29,429)	35,766	(21,585)	77,200	(91,021)
Net pension gains (losses) arising during the period, net of income tax provision (benefit) of $0, $0, $0 and $0	0	0	0	0
Reclassification adjustment for pension (gains) losses included in net income, net of income tax provision (benefit) of $(204), $(264), $(412) and $(525)	611	765	1,201	1,551
Net change in pension liability, net of income tax provision (benefit) of $204, $264, $412 and $525	611	765	1,201	1,551
Other comprehensive income (loss), net of income taxes	13,331	(17,454)	55,166	(75,081)
Comprehensive income	130,189	335,865	499,999	860,787
Comprehensive (income) loss attributable to the noncontrolling interests	(1,096)	669	(127)	1,412
Comprehensive loss attributable to the redeemable noncontrolling interests	323	234	896	1,003
Preferred stock dividends	(2,071)	(1,626)	(4,141)	(3,252)
Comprehensive income attributable to Jefferies Financial Group Inc. common shareholders	$ 127,345	$ 335,142	$ 496,627	$ 859,950