Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total		Total Jefferies Financial Group Inc. shareholders' equity	Preferred Stock	Common Stock	Additional paid-in capital	Accumulated other comprehensive loss, net of tax	Retained earnings	Retained earnings Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling interests
Balance, beginning of period at Nov. 30, 2023				$ 42	$ 210,627	$ 2,044,859	$ (395,545)	$ 7,849,844	$ (644)	$ 92,308
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common shares for treasury					(1,067)	(41,966)
Share-based compensation expense						20,215
Dividend equivalents						4,754
Other					2,441	(1,278)		(459)		312
Other comprehensive income (loss), net of taxes	$ (893)	[1]					(893)
Net earnings attributable to Jefferies Financial Group Inc.								163,830
Dividends - common shares ($0.40 and $0.30 per share)								(68,363)
Dividends - preferred shares	(6,300)							(6,300)
Net losses attributable to noncontrolling interests	156,392									(7,438)
Contributions										9,316
Distributions										(7,126)
Balance, end of period at Feb. 29, 2024	$ 9,867,469		$ 9,780,097	42	212,001	2,026,584	(396,438)	7,937,908		87,372
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Balance, beginning of period at Nov. 30, 2024	$ 10,224,987			55	205,504	2,104,199	(423,131)	8,270,145		68,215
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common shares for treasury					(696)	(55,622)
Share-based compensation expense						35,637
Dividend equivalents						8,597
Change in equity interest related to consolidated subsidiaries						853				(853)
Other					1,442	474				6,523
Other comprehensive income (loss), net of taxes	15,059	[1]					15,059
Net earnings attributable to Jefferies Financial Group Inc.								143,832
Dividends - common shares ($0.40 and $0.30 per share)								(91,095)
Dividends - preferred shares	(11,000)							(11,025)
Net losses attributable to noncontrolling interests	136,849									(6,983)
Contributions										104
Distributions										(2,795)
Balance, end of period at Feb. 28, 2025	$ 10,268,439		$ 10,204,228	$ 55	$ 206,250	$ 2,094,138	$ (408,072)	$ 8,311,857		$ 64,211
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]

[1] Includes unrealized losses of $0.2 million for the three months ended February 28, 2025 related to currency translation adjustments attributable to noncontrolling interests.