Jefferies Financial (JEF) 10-Q 8 Apr 21 2021 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Feb. 28, 2021	Mar. 31, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Feb. 28, 2021
Document Transition Report	false
Entity File Number	1-5721
Entity Registrant Name	JEFFERIES FINANCIAL GROUP INC.
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	13-2615557
Entity Address, Address Line One	520 Madison Avenue
Entity Address, City or Town	New York,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10022
City Area Code	212
Local Phone Number	460-1900
Title of 12(b) Security	Common Shares, par value $1 per share
Trading Symbol	JEF
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		246,972,393
Entity Central Index Key	0000096223
Amendment Flag	false
Current Fiscal Year End Date	--11-30
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Feb. 28, 2021	Nov. 30, 2020
ASSETS
Cash and cash equivalents		$ 8,648,961	$ 9,055,148
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations		615,115	604,321
Financial instruments owned, at fair value (including securities pledged of $12,150,880 and $13,065,585)		19,097,153	18,124,577
Loans to and investments in associated companies		1,689,048	1,686,563
Securities borrowed		7,150,657	6,934,762
Securities purchased under agreements to resell		6,680,284	5,096,769
Securities received as collateral, at fair value		0	7,517
Receivables		7,870,542	6,608,767
Property, equipment and leasehold improvements, net		896,317	897,204
Intangible assets, net and goodwill		1,914,322	1,913,467
Other assets		2,306,520	2,189,257
Total assets	[1]	56,868,919	53,118,352
LIABILITIES
Short-term borrowings		882,941	764,715
Financial instruments sold, not yet purchased, at fair value		12,370,254	10,017,600
Securities loaned		2,519,077	1,810,748
Securities sold under agreements to repurchase		7,207,636	8,316,269
Other secured financings		4,508,425	3,288,384
Obligation to return securities received as collateral, at fair value		0	7,517
Lease liabilities		580,129	584,807
Payables, expense accruals and other liabilities		10,622,970	10,388,072
Long-term debt		8,243,150	8,352,039
Total liabilities	[1]	46,934,582	43,530,151
Commitments and contingencies
MEZZANINE EQUITY
Redeemable noncontrolling interests		30,979	24,676
Mandatorily redeemable convertible preferred shares		125,000	125,000
EQUITY
Common shares, par value $1 per share, authorized 600,000,000 shares; 246,703,277 and 249,750,542 shares issued and outstanding, after deducting 69,759,335 and 66,712,070 shares held in treasury		246,703	249,751
Additional paid-in capital		2,804,243	2,911,223
Accumulated other comprehensive income (loss)		(346,544)	(288,917)
Retained earnings		7,041,460	6,531,836
Total Jefferies Financial Group Inc. shareholders' equity		9,745,862	9,403,893
Noncontrolling interests		32,496	34,632
Total equity		9,778,358	9,438,525
Total		$ 56,868,919	$ 53,118,352
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands		Feb. 28, 2021	Nov. 30, 2020
ASSETS
Securities pledged		$ 12,150,880	$ 13,065,585
EQUITY
Common shares, par value (in dollars per share)		$ 1	$ 1
Common shares, authorized (in shares)		600,000,000	600,000,000
Common shares, outstanding after deducting shares held in treasury (in shares)		246,703,277	249,750,542
Common shares, issued after deducting shares held in treasury (in shares)		246,703,277	249,750,542
Treasury stock (in shares)		69,759,335	66,712,070
Assets	[1]	$ 56,868,919	$ 53,118,352
Liabilities	[1]	46,934,582	43,530,151
Variable interest entities, primary beneficiary
Assets		747,100	566,100
Liabilities		$ 4,517,900	$ 3,291,300
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Revenues:
Revenues	$ 2,703,588	$ 1,692,264
Interest expense	20,367	21,554
Net revenues	2,486,942	1,386,328
Expenses:
Compensation and benefits	1,172,543	670,193
Cost of sales	95,559	72,443
Floor brokerage and clearing fees	76,416	59,181
Interest expense	20,367	21,554
Depreciation and amortization	38,767	39,470
Selling, general and other expenses	271,937	297,838
Total expenses	1,675,589	1,160,679
Income before income taxes and loss related to associated companies	811,353	225,649
Loss related to associated companies	(10,568)	(67,855)
Income before income taxes	800,785	157,794
Income tax provision	218,236	45,773
Net income	582,549	112,021
Net loss attributable to the redeemable noncontrolling interests	769	282
Preferred stock dividends	(1,626)	(1,422)
Net income attributable to Jefferies Financial Group Inc. common shareholders	$ 582,435	$ 113,010
Basic earnings per common share attributable to Jefferies Financial Group Inc. common shareholders:
Net income (in dollars per share)	$ 2.17	$ 0.37
Diluted earnings per common share attributable to Jefferies Financial Group Inc. common shareholders:
Net income (in dollars per share)	$ 2.13	$ 0.37
Net loss attributable to the noncontrolling interests	$ 743	$ 2,129
Commissions and other fees
Revenues:
Revenues	236,769	179,430
Principal transactions
Revenues:
Revenues	919,901	404,864
Investment banking
Revenues:
Revenues	1,003,612	592,002
Interest income
Revenues:
Revenues	240,497	326,366
Manufacturing revenues
Revenues:
Revenues	137,847	77,607
Other
Revenues:
Revenues	164,962	111,995
Jefferies Group
Revenues:
Interest expense	216,646	305,936
Expenses:
Interest expense	$ 216,646	$ 305,936

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 582,549	$ 112,021
Other comprehensive income (loss):
Net unrealized holding gains (losses) on investments arising during the period, net of income tax provision (benefit) of $(19) and $81	(60)	237
Less: reclassification adjustment for net (gains) losses included in net income, net of income tax provision (benefit) of $0 and $0	0	0
Net change in unrealized holding gains (losses) on investments, net of income tax provision (benefit) of $(19) and $81	(60)	237
Net unrealized foreign exchange gains (losses) arising during the period, net of income tax provision (benefit) of $3,253 and $(3,147)	11,083	(9,233)
Less: reclassification adjustment for foreign exchange (gains) losses included in net income, net of income tax provision (benefit) of $0 and $0	0	0
Net change in unrealized foreign exchange gains (losses), net of income tax provision (benefit) of $3,253 and $(3,147)	11,083	(9,233)
Net unrealized gains (losses) on instrument specific credit risk arising during the period, net of income tax provision (benefit) of $(22,182) and $7,939	(69,214)	23,248
Less: reclassification adjustment for instrument specific credit risk (gains) losses included in net income, net of income tax provision (benefit) of $71 and $86	(222)	(252)
Net change in unrealized instrument specific credit risk gains (losses), net of income tax provision (benefit) of $(22,253) and $7,853	(69,436)	22,996
Net pension gains (losses) arising during the period, net of income tax provision (benefit) of $0 and $0	0	0
Reclassification adjustment for pension (gains) losses included in net income, net of income tax provision (benefit) of $(261) and $(224)	786	639
Net change in pension liability, net of income tax provision (benefit) of $261 and $224	786	639
Other comprehensive income (loss), net of income taxes	(57,627)	14,639
Comprehensive income	524,922	126,660
Comprehensive loss attributable to the noncontrolling interests	743	2,129
Comprehensive loss attributable to the redeemable noncontrolling interests	769	282
Preferred stock dividends	(1,626)	(1,422)
Comprehensive income attributable to Jefferies Financial Group Inc. common shareholders	$ 524,808	$ 127,649

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Statement of Comprehensive Income [Abstract]
Net unrealized holding gains (losses) on investments arising during the period, tax provision (benefit)	$ (19)	$ 81
Less: reclassification adjustment for net (gains) losses included in net income (loss), tax provision (benefit)	0	0
Net change in unrealized holding gains (losses) on investments, tax provision (benefit)	(19)	81
Net unrealized foreign exchange gains (losses) arising during the period, tax provision (benefit)	3,253	(3,147)
Less: reclassification adjustment for foreign exchange (gains) losses included in net income (loss), tax provision (benefit)	0	0
Net change in unrealized foreign exchange gains (losses), tax provision (benefit)	3,253	(3,147)
Net unrealized gains (losses) on instrument specific credit risk arising during the period, tax provision (benefit)	(22,182)	7,939
Less: reclassification adjustment for instrument specific credit risk (gains) losses included in net income (loss), tax provision (benefit)	71	86
Net change in unrealized instrument specific credit risk gains (losses), tax provision (benefit)	(22,253)	7,853
Net pension gains (losses) arising during the period, tax provision (benefit)	0	0
Less: reclassification adjustment for pension (gains) losses included in net income (loss), tax provision (benefit)	261	224
Net change in pension liability, tax provision (benefit)	$ (261)	$ (224)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Net cash flows from operating activities:
Net income	$ 582,549	$ 112,021
Adjustments to reconcile net income to net cash used for operations:
Deferred income tax provision	9,149	12,237
Depreciation and amortization of real estate, property, equipment and leasehold improvements	36,012	36,415
Other amortization	6,321	2,971
Stock-based compensation	20,678	9,947
Provision for doubtful accounts	3,267	10,870
(Income) loss related to associated companies	(77,338)	39,096
Distributions from associated companies	19,345	49,646
Net losses related to property and equipment, and other assets	165	34,193
Net change in:
Securities deposited with clearing and depository organizations	(84,307)	(296,514)
Financial instruments owned, at fair value	(957,696)	(1,526,004)
Securities borrowed	(211,177)	910,494
Securities purchased under agreements to resell	(1,576,329)	(614,635)
Receivables from brokers, dealers and clearing organizations	(581,609)	(1,433,478)
Receivables from customers of securities operations	(575,823)	(48,710)
Other receivables	(101,570)	(28,454)
Other assets	(45,883)	(231,104)
Financial instruments sold, not yet purchased, at fair value	2,339,208	(635,893)
Securities loaned	704,075	371,286
Securities sold under agreements to repurchase	(1,114,857)	909,654
Payables to brokers, dealers and clearing organizations	768,358	1,569,726
Payables to customers of securities operations	(161,557)	(51,154)
Lease liabilities	(12,811)	(17,959)
Trade payables, expense accruals and other liabilities	(387,334)	(199,966)
Other	(96,774)	97,232
Net cash used for operating activities	(1,495,938)	(918,083)
Net cash flows from investing activities:
Acquisitions of property, equipment and leasehold improvements, and other assets	(24,243)	(60,982)
Advances on notes, loans and other receivables	(137,527)	(239,241)
Collections on notes, loans and other receivables	74,573	229,476
Loans to and investments in associated companies	(914,484)	(864,422)
Capital distributions and loan repayments from associated companies	969,817	883,299
Other	(476)	2,560
Net cash used for investing activities	(32,340)	(49,310)
Net cash flows from financing activities:
Issuance of debt, net of issuance costs	431,811	759,478
Repayment of debt	(396,556)	(555,076)
Net change in other secured financings	1,219,585	(150,485)
Net change in bank overdrafts	(4,706)	(34,518)
Contributions from noncontrolling interests	80	17,100
Purchase of common shares for treasury	(130,097)	(310,187)
Dividends paid	(49,768)	(42,793)
Other	(696)	316
Net cash provided by (used for) financing activities	1,069,653	(316,165)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	3,886	(2,927)
Net decrease in cash, cash equivalents and restricted cash	(454,739)	(1,286,485)
Cash, cash equivalents and restricted cash at beginning of period	9,664,972	8,480,435
Cash, cash equivalents and restricted cash at end of period	$ 9,210,233	$ 7,193,950

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	Feb. 28, 2021	Feb. 29, 2020
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 8,648,961	$ 6,710,659
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	496,571	410,632
Other assets	64,701	72,659
Total cash, cash equivalents and restricted cash	$ 9,210,233	$ 7,193,950

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Cumulative effect of the adoption of accounting standards	Cumulative effect of the adoption of accounting standards, adjusted balance	Common Shares $1 Par Value	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Retained EarningsCumulative effect of the adoption of accounting standards	Retained EarningsCumulative effect of the adoption of accounting standards, adjusted balance	Subtotal	SubtotalCumulative effect of the adoption of accounting standards	SubtotalCumulative effect of the adoption of accounting standards, adjusted balance	Noncontrolling Interests
Beginning Balance at Nov. 30, 2019	$ 9,601,684			$ 291,644	$ 3,627,711	$ (273,039)	$ 5,933,389			$ 9,579,705			$ 21,979
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Jefferies Financial Group Inc. common shareholders	113,010						113,010			113,010
Net loss attributable to the noncontrolling interests	(2,129)									0			(2,129)
Other comprehensive loss, net of taxes	14,639					14,639				14,639
Contributions from noncontrolling interests	17,100									0			17,100
Stock-based compensation expense	9,947				9,947					9,947
Change in fair value of redeemable noncontrolling interests	1,564				1,564					1,564
Purchase of common shares for treasury	(327,501)			(14,738)	(312,763)					(327,501)
Dividends	(45,786)						(45,786)			(45,786)
Other	3,377			203	3,174					3,377
Ending Balance at Feb. 29, 2020	9,385,905			277,109	3,329,633	(258,400)	6,000,613			9,348,955			36,950
Beginning Balance at Nov. 30, 2020	9,438,525	$ (19,915)	$ 9,418,610	249,751	2,911,223	(288,917)	6,531,836	$ (19,915)	$ 6,511,921	9,403,893	$ (19,915)	$ 9,383,978	34,632
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Jefferies Financial Group Inc. common shareholders	582,435						582,435			582,435
Net loss attributable to the noncontrolling interests	(743)									0			(743)
Other comprehensive loss, net of taxes	(57,627)					(57,627)				(57,627)
Contributions from noncontrolling interests	80									0			80
Distributions to noncontrolling interests	(1,473)									0			(1,473)
Stock-based compensation expense	20,678				20,678					20,678
Change in fair value of redeemable noncontrolling interests	(7,058)				(7,058)					(7,058)
Purchase of common shares for treasury	(130,097)			(5,103)	(124,994)					(130,097)
Dividends	(52,896)						(52,896)			(52,896)
Other	6,449			2,055	4,394					6,449
Ending Balance at Feb. 28, 2021	$ 9,778,358			$ 246,703	$ 2,804,243	$ (346,544)	$ 7,041,460			$ 9,745,862			$ 32,496

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Statement of Stockholders' Equity [Abstract]
Common shares, par value (in dollars per share)	$ 1	$ 1
Dividends per common share (in dollars per share)	$ 0.20	$ 0.15

Nature of Operations

Nature of Operations	3 Months Ended
	Feb. 28, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Nature of Operations Jefferies Financial Group Inc. ("Jefferies," "we," "our" or the "Company") is engaged in investment banking and capital markets, asset management and direct investing. Jefferies Group LLC ("Jefferies Group"), our largest subsidiary, was established in 1962 and is now the largest independent U.S.-headquartered global full-service integrated investment banking and securities firm. Jefferies Group operates in two business segments: Investment Banking and Capital Markets, and Asset Management. Investment Banking and Capital Markets includes investment banking, capital markets and other related services. Investment banking provides underwriting and financial advisory services to clients across most industry sectors in the Americas, Europe and Asia. Capital markets businesses operate across the spectrum of equities and fixed income products. Our Asset Management segment comprises all asset management operations, including those within Jefferies Group. Within Asset Management, we manage, invest in and provide services to a diverse group of alternative asset management platforms across a spectrum of investment strategies and asset classes. Asset Management offers institutional clients an innovative range of investment strategies through its affiliated managers. Merchant Banking is where we own a portfolio of businesses and investments, including Linkem (fixed wireless broadband services in Italy); Vitesse Energy, LLC ("Vitesse Energy Finance") and JETX Energy, LLC ("JETX Energy") (oil and gas production and development); real estate, primarily HomeFed LLC ("HomeFed"); Idaho Timber (manufacturing); and FXCM Group, LLC ("FXCM") (provider of online foreign exchange trading services). The structure of each of our investments was tailored to the unique opportunity each transaction presented. Our investments may be reflected in our consolidated results as consolidated subsidiaries, equity investments, securities or in other ways, depending on the structure of our specific holdings. We own approximately 42% of the common shares of Linkem, as well as convertible preferred shares and warrants. If all of our convertible preferred stock was converted and warrants were exercised, it would increase our ownership to approximately 56% of Linkem's common equity at February 28, 2021. Linkem provides residential broadband services in Italy using LTE technologies deployed over the 3.5 GHz spectrum band. Linkem deployed its first 5G towers in late 2020 and plans to rapidly increase its network coverage and service offerings over the coming years as it upgrades to 5G, adds subscribers and leverages its assets. Linkem is accounted for under the equity method. Vitesse Energy Finance is our 97% owned consolidated subsidiary that acquires, invests and monetizes non-operated working interests and royalties predominantly in the Bakken Shale of the Williston Basin in North Dakota. JETX Energy is our 98% owned consolidated subsidiary that currently has non-operated working interests and acreage in east Texas. HomeFed is our 100% owned consolidated subsidiary that owns and develops residential and mixed-use real estate properties. Idaho Timber is our 100% owned consolidated subsidiary engaged in the manufacture and distribution of various wood products. Our investment in FXCM and associated companies consists of a senior secured term loan due February 15, 2022 ($71.6 million principal outstanding at February 28, 2021), a 50% voting interest in FXCM and rights to a majority of all distributions in respect of the equity of FXCM.

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Feb. 28, 2021
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Our unaudited interim consolidated financial statements have been prepared in accordance with the instructions for Form 10-Q and, therefore, do not include all information and footnotes which are normally included in our Form 10-K. These financial statements reflect all adjustments (consisting of normal recurring items or items discussed herein) that management believes are necessary to fairly state results for the interim periods presented. Results of operations for interim periods are not necessarily indicative of annual results of operations. For a detailed discussion about the Company's significant accounting policies, see Note 2, Significant Accounting Policies, included in our Annual Report on Form 10-K for the year ended November 30, 2020 ("2020 10-K"). The preparation of these financial statements in accordance with accounting principles generally accepted in the United States of America ("GAAP") requires us to make estimates and assumptions that affect the reported amounts in the financial statements and disclosures of contingent assets and liabilities. On an ongoing basis, we evaluate all of these estimates and assumptions. During the three months ended February 28, 2021, other than the following, there were no significant changes made to the Company's significant accounting policies. The accounting policy changes are attributable to the adoption of the Financial Accounting Standards Board ("FASB") guidance on credit losses on financial instruments (the "new credit loss standard") on December 1, 2020. The credit loss policy updates were applied using a modified retrospective approach, through a cumulative-effect adjustment to retained earnings upon adoption. Reported financial information for the historical comparable period was not revised and continues to be reported under the accounting standards in effect during the historical periods. Credit Losses Provision for credit losses are charged to income in amounts sufficient to maintain an allowance for credit losses inherent in Foursight Capital's finance receivables held for investment. The allowance for credit losses is established systematically by management based on the determination of the amount of credit losses inherent in the finance receivables held for investment as of the reporting date. All finance receivables held for investment of Foursight Capital are collectively evaluated for impairment. Management's estimate of expected credit losses is based on an evaluation of relevant information about past events, current conditions, and reasonable and supportable forecasts that affect the future collectability of the reported amounts. Foursight Capital uses static pool modeling techniques to determine the allowance for loan losses expected over the remaining life of the receivables, which is supplemented by management judgment. Expected losses are estimated for groups of accounts aggregated by monthly vintage. Generally, the expected losses are projected based on historical loss experience over the last eight years, more heavily weighted toward recent performance when determining the allowance to result in an estimate that is more reflective of the current internal and external environments. Foursight Capital's estimate of expected credit losses includes a reasonable and supportable forecast period of two years and then reverts to an estimate based on historical losses. Foursight Capital reviews charge-off experience factors, contractual delinquency, historical collection rates, the value of underlying collateral and other information to make the necessary judgments as to credit losses expected in the portfolio as of the reporting date. While management utilizes the best information available to make its evaluations, changes in macroeconomic conditions, interest rate environments, or both, may significantly impact the assumptions and inputs used in determining the allowance for credit losses. Foursight Capital's charge-off policy is based on a loan by loan review of delinquent finance receivables. The charge-off policy requires that balances be charged-off at the earlier of when they are 120 days contractually past due and the automobile has been in Foursight Capital's possession for at least 45 days, the month in which it has been determined in good faith that all amounts it expects to recover on a contract have been received, or at the end of the month in which they are 120 days contractually past due and the vehicle hasn’t been repossessed. The loans may be charged-off earlier than 120 days based upon management review of certain delinquent or impaired loans on an individual basis. Losses on finance receivables secured by automobiles are recognized at the time when anticipated losses are determined for contracts in repossession status. Foursight Capital generally initiates repossession proceedings when an account is three payments contractually past due. Other financial assets measured at amortized cost are presented at the net amount expected to be collected and the measurement of credit losses and any expected increases or decreases in expected credit losses are recognized in earnings. The estimate of expected credit losses involves judgment and based on an assessment over the life of the financial instrument taking into consideration forecasts of expected future economic conditions. In evaluating secured financing receivables (reverse repurchases agreements, securities borrowing arrangements and margin loans), the underlying collateral maintenance provisions are taken into consideration. The underlying contractual collateral maintenance for significantly all of Jefferies Group's secured financing receivables requires that the counterparty continually adjust the collateralization amount, securing the credit exposure on these contracts. Collateralization levels for Jefferies Group's secured financing receivables are initially established based upon the counterparty, the type of acceptable collateral that is monitored daily and adjusted to mitigate the potential of any credit losses. Credit losses are not recognized for secured financing receivables where the underlying collateral's fair value is equal to or exceeds the asset's amortized cost basis. In cases where the collateral's fair value does not equal or exceed the amortized cost basis, the allowance for credit losses, if any, is limited to the difference between the fair value of the collateral at the reporting date and the amortized cost basis of the financial assets. Our receivables from brokers, dealers, and clearing organizations include deposits of cash with exchange clearing organizations to meet margin requirements, amounts due from clearing organizations for daily variation settlements, securities failed-to-deliver or receive, receivables and payables for fees and commissions, and receivables arising from unsettled securities or loans transactions. These receivables generally do not give rise to material credit risk and have a remote probability of default either because of their short-term nature or due to the credit protection framework inherent in the design and operations of brokers, dealers and clearing organizations. As such, generally, no allowance for credit losses is held against these receivables. For all other financial assets measured at amortized cost, we estimate expected credit losses over the financial assets' life as of the reporting date based on relevant information about past events, current conditions, and reasonable and supportable forecasts. Receivables At February 28, 2021 and November 30, 2020, Receivables include receivables from brokers, dealers and clearing organizations of $4,750.7 million and $4,161.8 million, respectively, and receivables from customers of securities operations of $1,863.5 million and $1,286.9 million, respectively. Our subsidiary, Foursight Capital, had automobile loan receivables of $713.4 million and $694.2 million at February 28, 2021 and November 30, 2020, respectively. Of these amounts, $686.8 million and $532.4 million at February 28, 2021 and November 30, 2020, respectively, were in securitized vehicles. See Notes 6 and 7 for additional information on Foursight Capital's securitization activities. Based primarily on FICO credit scores, Foursight Capital classifies its finance receivables held for investment as prime, near-prime and sub-prime based on the perceived credit risk at origination and generally considers prime receivables as those with a FICO score of 680 and above, near-prime with scores between 620 and 679 and sub-prime with scores below 620. The credit quality classification at both February 28, 2021 and November 30, 2020 was approximately 14% prime, 54% near-prime and 32% sub-prime, respectively. A roll forward of the allowance for credit losses for the three months ended February 28, 2021 and February 29, 2020 is as follows (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Beginning balance $ 53,926 $ 34,018 Adjustment for change in accounting principle for current expected credit losses 26,519 — Provision for doubtful accounts 3,267 10,870 Charge-offs, net of recoveries (7,320) (10,850) Ending balance $ 76,392 $ 34,038 Other Investments At February 28, 2021 and November 30, 2020, the Company had other investments (classified as Other assets and Loans to and investments in associated companies) in which fair values are not readily determinable, aggregating $77.3 million and $90.2 million, respectively. Impairments recognized on these investments were $20.0 million during the three months ended February 29, 2020. There were no impairments on these investments during the three months ended February 28, 2021. Capitalization of Interest We capitalize interest on qualifying HomeFed real estate assets. During the three months ended February 28, 2021 and February 29, 2020, capitalized interest of $1.9 million and $2.3 million, respectively, was allocated among all of HomeFed's projects that are currently under development. Payables, expense accruals and other liabilities At February 28, 2021 and November 30, 2020, Payables, expense accruals and other liabilities include payables to brokers, dealers and clearing organizations of $4,098.8 million and $3,325.8 million, respectively, and payables to customers of securities operations of $4,090.0 million and $4,249.7 million, respectively. Supplemental Cash Flow Information For the Three Months Ended February 28, 2021 February 29, 2020 (In thousands) Cash paid during the year for: Interest $ 242,027 $ 365,842 Income tax payments (refunds), net $ 20,350 $ (10,697) During the three months ended February 29, 2020, we had $18.5 million in non-cash financing activities related to purchases of common shares for treasury which settled subsequent to February 29, 2020. Accounting Developments - Accounting Standards Adopted in Current Annual Reporting Period Financial Instruments - Credit Losses. In June 2016, the FASB issued new guidance which provides for estimating credit losses on financial assets measured at amortized cost by introducing an approach based on expected losses over the financial asset's entire life, recorded at inception or purchase. We adopted the new credit loss guidance on December 1, 2020 and applied a modified retrospective approach through a cumulative-effect adjustment to retained earnings upon adoption. At transition on December 1, 2020, the new accounting guidance's adoption resulted in an increase in the allowance for credit losses of $26.5 million with a corresponding decrease in retained earnings of $19.9 million, net of tax. The increase is primarily attributable to a $30.1 million increase in the allowance for credit losses in Foursight Capital's portfolio of finance receivables held for investment. Foursight Capital estimates expected credit losses on its portfolio using analysis of historical portfolio performance data as well as external economic factors that management considers to be relevant to the credit losses expected in the portfolio. This is partially offset by a $3.6 million decrease in the allowance for credit losses at Jefferies Group that is attributable to applying a revised provisioning methodology based on historical loss experience for its investment banking fee receivables. We have determined expected credit losses to be immaterial upon adoption for our other financial instruments within the scope of the guidance. A significant portion of our financial instruments within the scope of the guidance represent secured financing receivables (reverse repurchase agreements, secured borrowing arrangements, and margin loans) that are substantially collateralized. For our secured financing receivables, we have concluded that the impact upon adoption was immaterial because the contractual collateral maintenance provisions require that the counterparty continually adjust the amount of collateralization securing the credit exposure on these contracts. Collateralization levels for our secured financing receivables are initially established based upon the counterparty, the type of acceptable collateral that is monitored daily and adjusted to mitigate the potential of any credit losses. For the remaining financial instruments within the guidance's scope, the expected credit losses were also determined to be immaterial considering the counterparty's credit quality, an insignificant history of credit losses, or the short-term nature of the credit exposures. Goodwill. In January 2017, the FASB issued new guidance which simplifies goodwill impairment testing. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Defined Benefit Plans. In August 2018, the FASB issued new guidance to improve the effectiveness of disclosure requirements on defined benefit pension plans and other post-retirement plans. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Internal-Use Software. In August 2018, the FASB issued new guidance which amends the definition of a hosting arrangement and requires that the customer in a hosting arrangement that is a service contract capitalize certain implementation costs as if the arrangement was an internal-use software project. We adopted the guidance in the first quarter of fiscal 2021 and elected to apply the guidance prospectively to implementation costs incurred after the adoption date. The adoption did not have an impact on our consolidated financial statements on the adoption date. Consolidation. In October 2018, the FASB issued new guidance which requires indirect interests held through related parties under common control arrangements be considered on a proportional basis for determining whether fees paid to decision makers and service providers are variable interests. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Income Taxes. In December 2019, the FASB issued new guidance to simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and to provide more consistent application to improve the comparability of financial statements. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements.

Fair Value Disclosures

Fair Value Disclosures	3 Months Ended
	Feb. 28, 2021
Fair Value Disclosures [Abstract]
Fair Value Disclosures	Fair Value Disclosures The following is a summary of our financial assets and liabilities that are accounted for at fair value on a recurring basis, excluding Investments at fair value based on net asset value ("NAV") of $1,026.4 million and $965.4 million at February 28, 2021 and November 30, 2020, respectively, by level within the fair value hierarchy (in thousands): February 28, 2021 Level 1 Level 2 Level 3 Counterparty Total Assets: Financial instruments owned, at fair value: Corporate equity securities $ 2,873,165 $ 58,056 $ 102,065 $ — $ 3,033,286 Corporate debt securities — 3,451,833 6,811 — 3,458,644 Collateralized debt obligations and collateralized loan obligations — 91,654 33,199 — 124,853 U.S. government and federal agency securities 2,485,813 73,550 — — 2,559,363 Municipal securities — 292,604 — — 292,604 Sovereign obligations 1,668,975 799,239 — — 2,468,214 Residential mortgage-backed securities — 1,880,823 21,692 — 1,902,515 Commercial mortgage-backed securities — 37,013 2,671 — 39,684 Other asset-backed securities — 63,956 60,594 — 124,550 Loans and other receivables — 3,099,917 149,084 — 3,249,001 Derivatives 3,346 3,091,787 39,397 (2,604,607) 529,923 Investments at fair value — 6,399 219,541 — 225,940 FXCM term loan — — 62,132 — 62,132 Total financial instruments owned, at fair value, excluding investments at fair value based on NAV $ 7,031,299 $ 12,946,831 $ 697,186 $ (2,604,607) $ 18,070,709 Loans to and investments in associated $ — $ — $ 39,397 $ — $ 39,397 Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 2,124,994 $ 1,075 $ 4,443 $ — $ 2,130,512 Corporate debt securities — 1,824,458 1,571 — 1,826,029 U.S. government and federal agency securities 2,618,198 — — — 2,618,198 Sovereign obligations 1,343,920 1,016,688 — — 2,360,608 Commercial mortgage-backed securities — — 35 — 35 Loans — 2,326,306 14,916 — 2,341,222 Derivatives 2,173 3,743,677 344,903 (2,997,103) 1,093,650 Total financial instruments sold, not yet purchased, at fair value $ 6,089,285 $ 8,912,204 $ 365,868 $ (2,997,103) $ 12,370,254 Other secured financings $ — $ — $ 2,168 $ — $ 2,168 Long-term debt $ — $ 1,061,042 $ 723,115 $ — $ 1,784,157 November 30, 2020 Level 1 Level 2 Level 3 Counterparty Total Assets: Financial instruments owned, at fair value: Corporate equity securities $ 2,475,887 $ 58,159 $ 75,904 $ — $ 2,609,950 Corporate debt securities — 2,954,236 23,146 — 2,977,382 Collateralized debt obligations and collateralized loan obligations — 64,155 17,972 — 82,127 U.S. government and federal agency securities 2,840,025 91,653 — — 2,931,678 Municipal securities — 453,881 — — 453,881 Sovereign obligations 1,962,346 591,342 — — 2,553,688 Residential mortgage-backed securities — 1,100,849 21,826 — 1,122,675 Commercial mortgage-backed securities — 736,291 2,003 — 738,294 Other asset-backed securities — 103,611 79,995 — 183,606 Loans and other receivables — 2,610,746 134,636 — 2,745,382 Derivatives 1,523 2,013,942 21,678 (1,556,136) 481,007 Investments at fair value — 6,122 213,946 — 220,068 FXCM term loan — — 59,455 — 59,455 Total financial instruments owned, at fair value, excluding investments at fair value based on NAV $ 7,279,781 $ 10,784,987 $ 650,561 $ (1,556,136) $ 17,159,193 Loans to and investments in associated $ — $ 8,603 $ 40,185 $ — $ 48,788 Securities received as collateral, at fair value $ 7,517 $ — $ — $ — $ 7,517 Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 2,046,441 $ 9,046 $ 4,434 $ — $ 2,059,921 Corporate debt securities — 1,237,631 141 — 1,237,772 U.S. government and federal agency securities 2,609,660 — — — 2,609,660 Sovereign obligations 1,050,771 624,740 — — 1,675,511 Residential mortgage-backed securities — 477 — — 477 Commercial mortgage-backed securities — — 35 — 35 Loans — 1,776,446 16,635 — 1,793,081 Derivatives 551 2,391,556 47,695 (1,798,659) 641,143 Total financial instruments sold, not yet purchased, at fair value $ 5,707,423 $ 6,039,896 $ 68,940 $ (1,798,659) $ 10,017,600 Short-term borrowings $ — $ 5,067 $ — $ — $ 5,067 Other secured financings $ — $ — $ 1,543 $ — $ 1,543 Long-term debt $ — $ 1,036,217 $ 676,028 $ — $ 1,712,245 Obligation to return securities received as collateral, at fair value $ 7,517 $ — $ — $ — $ 7,517 (1) Represents counterparty and cash collateral netting across the levels of the fair value hierarchy for positions with the same counterparty. The following is a description of the valuation basis, including valuation techniques and inputs, used in measuring our financial assets and liabilities that are accounted for at fair value on a recurring basis: Corporate Equity Securities • Exchange-Traded Equity Securities: Exchange-traded equity securities are measured based on quoted closing exchange prices, which are generally obtained from external pricing services, and are categorized within Level 1 of the fair value hierarchy, otherwise they are categorized within Level 2 of the fair value hierarchy. To the extent these securities are actively traded, valuation adjustments are not applied. • Non-Exchange-Traded Equity Securities : Non-exchange-traded equity securities are measured primarily using broker quotations, pricing data from external pricing services and prices observed from recently executed market transactions and are categorized within Level 2 of the fair value hierarchy. Where such information is not available, non-exchange-traded equity securities are categorized within Level 3 of the fair value hierarchy and measured using valuation techniques involving quoted prices of or market data for comparable companies, similar company ratios and multiples (e.g., price/Earnings before interest, taxes, depreciation and amortization ("EBITDA"), price/book value), discounted cash flow analyses and transaction prices observed from subsequent financing or capital issuance by Jefferies Group. When using pricing data of comparable companies, judgment must be applied to adjust the pricing data to account for differences between the measured security and the comparable security (e.g., issuer market capitalization, yield, dividend rate, geographical concentration). • Equity Warrants: Non-exchange-traded equity warrants are measured primarily from observed prices on recently executed market transactions and broker quotations and are categorized within Level 2 of the fair value hierarchy. Where such information is not available, non-exchange-traded equity warrants are generally categorized within Level 3 of the fair value hierarchy and can be measured using third-party valuation services or the Black-Scholes model with key inputs impacting the valuation including the underlying security price, implied volatility, dividend yield, interest rate curve, strike price and maturity date. Corporate Debt Securities • Investment Grade Corporate Bonds: Investment grade corporate bonds are measured primarily using pricing data from external pricing services and broker quotations, where available, prices observed from recently executed market transactions and bond spreads or credit default swap spreads of the issuer adjusted for basis differences between the swap curve and the bond curve. Investment grade corporate bonds measured using these valuation methods are categorized within Level 2 of the fair value hierarchy. If broker quotes, pricing data or spread data is not available, alternative valuation techniques are used including cash flow models incorporating interest rate curves, single name or index credit default swap curves for comparable issuers and recovery rate assumptions. Investment grade corporate bonds measured using alternative valuation techniques are categorized within Level 2 or Level 3 of the fair value hierarchy and are a limited portion of our investment grade corporate bonds. • High Yield Corporate and Convertible Bonds: A significant portion of our high yield corporate and convertible bonds are categorized within Level 2 of the fair value hierarchy and are measured primarily using broker quotations and pricing data from external pricing services, where available, and prices observed from recently executed market transactions of institutional size. Where pricing data is less observable, valuations are categorized within Level 3 of the fair value hierarchy and are based on pending transactions involving the issuer or comparable issuers, prices implied from an issuer's subsequent financing or recapitalization, models incorporating financial ratios and projected cash flows of the issuer and market prices for comparable issuers. Collateralized Debt Obligations and Collateralized Loan Obligations Collateralized debt obligations ("CDOs") and collateralized loan obligations ("CLOs") are measured based on prices observed from recently executed market transactions of the same or similar security or based on valuations received from third-party brokers or data providers and are categorized within Level 2 or Level 3 of the fair value hierarchy depending on the observability and significance of the pricing inputs. Valuation that is based on recently executed market transactions of similar securities incorporates additional review and analysis of pricing inputs and comparability criteria, including, but not limited to, collateral type, tranche type, rating, origination year, prepayment rates, default rates and loss severity. U.S. Government and Federal Agency Securities • U.S. Treasury Securities: U.S. Treasury securities are measured based on quoted market prices obtained from external pricing services and categorized within Level 1 of the fair value hierarchy. • U.S. Agency Debt Securities: Callable and non-callable U.S. agency debt securities are measured primarily based on quoted market prices obtained from external pricing services and are generally categorized within Level 1 or Level 2 of the fair value hierarchy. Municipal Securities Municipal securities are measured based on quoted prices obtained from external pricing services, where available, or recently executed independent transactions of comparable size and are generally categorized within Level 2 of the fair value hierarchy. Sovereign Obligations Sovereign government obligations are measured based on quoted market prices obtained from external pricing services, where available, or recently executed independent transactions of comparable size. Sovereign government obligations, with consideration given to the country of issuance, are generally categorized within Level 1 or Level 2 of the fair value hierarchy. Residential Mortgage-Backed Securities • Agency Residential Mortgage-Backed Securities: Agency residential mortgage-backed securities include mortgage pass-through securities (fixed and adjustable rate), collateralized mortgage obligations and principal-only and interest-only (including inverse interest-only) securities. Agency residential mortgage-backed securities are generally measured using recent transactions, pricing data from external pricing services or expected future cash flow techniques that incorporate prepayment models and other prepayment assumptions to amortize the underlying mortgage loan collateral and are categorized within Level 2 or Level 3 of the fair value hierarchy. We use prices observed from recently executed transactions to develop market-clearing spread and yield assumptions. Valuation inputs with regard to the underlying collateral incorporate factors such as weighted average coupon, loan-to-value, credit scores, geographic location, maximum and average loan size, originator, servicer and weighted average loan age. • Non-Agency Residential Mortgage-Backed Securities: The fair value of non-agency residential mortgage-backed securities is determined primarily using pricing data from external pricing services, where available, and discounted cash flow methodologies and securities are categorized within Level 2 or Level 3 of the fair value hierarchy based on the observability and significance of the pricing inputs used. Performance attributes of the underlying mortgage loans are evaluated to estimate pricing inputs, such as prepayment rates, default rates and the severity of credit losses. Attributes of the underlying mortgage loans that affect the pricing inputs include, but are not limited to, weighted average coupon; average and maximum loan size; loan-to-value; credit scores; documentation type; geographic location; weighted average loan age; originator; servicer; historical prepayment, default and loss severity experience of the mortgage loan pool; and delinquency rate. Yield curves used in the discounted cash flow models are based on observed market prices for comparable securities and published interest rate data to estimate market yields. In addition, broker quotes, where available, are also referenced to compare prices primarily on interest-only securities. Commercial Mortgage-Backed Securities • Agency Commercial Mortgage-Backed Securities: Government National Mortgage Association ("GNMA") project loan bonds are measured based on inputs corroborated from and benchmarked to observed prices of recent securitization transactions of similar securities with adjustments incorporating an evaluation of various factors, including prepayment speeds, default rates and cash flow structures. Federal National Mortgage Association ("FNMA") Delegated Underwriting and Servicing ("DUS") mortgage-backed securities are generally measured by using prices observed from recently executed market transactions to estimate market-clearing spread levels for purposes of estimating fair value. GNMA project loan bonds and FNMA DUS mortgage-backed securities are categorized within Level 2 of the fair value hierarchy. • Non-Agency Commercial Mortgage-Backed Securities: Non-agency commercial mortgage-backed securities are measured using pricing data obtained from external pricing services, prices observed from recently executed market transactions or based on expected cash flow models that incorporate underlying loan collateral characteristics and performance. Non-agency commercial mortgage-backed securities are categorized within Level 2 or Level 3 of the fair value hierarchy depending on the observability of the underlying inputs. Other Asset-Backed Securities Other asset-backed securities include, but are not limited to, securities backed by auto loans, credit card receivables, student loans and other consumer loans and are categorized within Level 2 or Level 3 of the fair value hierarchy. Valuations are primarily determined using pricing data obtained from external pricing services, broker quotes and prices observed from recently executed market transactions. In addition, recent transaction data from comparable deals is deployed to develop market clearing yields and cumulative loss assumptions. The cumulative loss assumptions are based on the analysis of the underlying collateral and comparisons to earlier deals from the same issuer to gauge the relative performance of the deal. Loans and Other Receivables • Corporate Loans: Corporate loans categorized within Level 2 of the fair value hierarchy are measured based on market consensus pricing service quotations. Where available, market price quotations from external pricing services are reviewed to ensure they are supported by transaction data. Corporate loans categorized within Level 3 of the fair value hierarchy are measured based on price quotations that are considered to be less transparent, for example, derived using market prices for debt securities of the same creditor and estimates of future cash flows incorporating assumptions regarding creditor default and recovery rates and consideration of the issuer's capital structure. • Participation Certificates in Agency Residential Loans: Valuations of participation certificates in agency residential loans are based on observed market prices of recently executed purchases and sales of similar loans and data provider pricing. The loan participation certificates are categorized within Level 2 of the fair value hierarchy given the observability and volume of recently executed transactions and availability of data provider pricing. • Project Loans and Participation Certificates in GNMA Project and Construction Loans: Valuations of participation certificates in GNMA project and construction loans are based on inputs corroborated from and benchmarked to observed prices of recent securitizations with similar underlying loan collateral to derive an implied spread. Securitization prices are adjusted to estimate the fair value of the loans to account for the arbitrage that is realized at the time of securitization. The measurements are categorized within Level 2 of the fair value hierarchy given the observability and volume of recently executed transactions. • Consumer Loans and Funding Facilities: Consumer and small business whole loans and related funding facilities are valued based on observed market transactions and incorporating valuation inputs including, but not limited to, delinquency and default rates, prepayment rates, borrower characteristics, loan risk grades and loan age. These assets are categorized within Level 2 or Level 3 of the fair value hierarchy. • Escrow and Claim Receivables: Escrow and claim receivables are categorized within Level 3 of the fair value hierarchy where fair value is estimated based on reference to market prices and implied yields of debt securities of the same or similar issuers. Escrow and claim receivables are categorized within Level 2 of the fair value hierarchy where fair value is based on recent observations in the same receivable. Derivatives • Listed Derivative Contracts: Listed derivative contracts that are actively traded are measured based on quoted exchange prices, broker quotes or vanilla option valuation models, such as Black-Scholes, using observable valuation inputs from the principal market or consensus pricing services. Exchange quotes and/or valuation inputs are generally obtained from external vendors and pricing services. Broker quotes are validated directly through observable and tradeable quotes. Listed derivative contracts that use unadjusted exchange close prices are generally categorized within Level 1 of the fair value hierarchy. All other listed derivative contracts are generally categorized within Level 2 of the fair value hierarchy. • Over-the-Counter ("OTC") Derivative Contracts: OTC derivative contracts are generally valued using models, whose inputs reflect assumptions that we believe market participants would use in valuing the derivative in a current transaction. Where available, valuation inputs are calibrated from observable market data. For many OTC derivative contracts, the valuation models do not involve material subjectivity as the methodologies do not entail significant judgment and the inputs to valuation models do not involve a high degree of subjectivity as the valuation model inputs are readily observable or can be derived from actively quoted markets. OTC derivative contracts are primarily categorized within Level 2 of the fair value hierarchy given the observability and significance of the inputs to the valuation models. Where significant inputs to the valuation are unobservable, derivative instruments are categorized within Level 3 of the fair value hierarchy. OTC options include OTC equity, foreign exchange, interest rate and commodity options measured using various valuation models, such as Black-Scholes, with key inputs including the underlying security price, foreign exchange spot rate, commodity price, implied volatility, dividend yield, interest rate curve, strike price and maturity date. Discounted cash flow models are utilized to measure certain OTC derivative contracts including the valuations of our interest rate swaps, which incorporate observable inputs related to interest rate curves, valuations of our foreign exchange forwards and swaps, which incorporate observable inputs related to foreign currency spot rates and forward curves and valuations of our commodity swaps and forwards, which incorporate observable inputs related to commodity spot prices and forward curves. Discounted cash flow models are also utilized to measure certain variable funding note swaps, which are backed by CLOs and incorporate constant prepayment rate, constant default rate and loss severity assumptions. Credit default swaps include both index and single-name credit default swaps. Where available, external data is used in measuring index credit default swaps and single-name credit default swaps. For commodity and equity total return swaps, market prices are generally observable for the underlying asset and used as the basis for measuring the fair value of the derivative contracts. Total return swaps executed on other underlyings are measured based on valuations received from external pricing services. • Oil Futures Derivatives: Vitesse Energy Finance uses swaps and call and put options in order to reduce exposure to future oil price fluctuations. Vitesse Energy Finance accounts for the derivative instruments at fair value, which are classified as either Level 1 or Level 2 within the fair value hierarchy. Fair values classified as Level 1 are measured based on quoted closing exchange prices obtained from external pricing services and Level 2 are determined under the income valuation technique using an option-pricing model that is based on directly or indirectly observable inputs. Investments at Fair Value Investments at fair value include investments in hedge funds, fund of funds and private equity funds, which are measured at the NAV of the funds, provided by the fund managers and are excluded from the fair value hierarchy. Investments at fair value also include direct equity investments in private companies, which are measured at fair value using valuation techniques involving quoted prices of or market data for comparable companies, similar company ratios and multiples (e.g., price/EBITDA, price/book value), discounted cash flow analyses, contingent claims analysis and transaction prices observed for subsequent financing or capital issuance by the company. Direct equity investments in private companies are categorized within Level 2 or Level 3 of the fair value hierarchy. The following tables present information about our investments in entities that have the characteristics of an investment company (in thousands): Fair Value (1) Unfunded February 28, 2021 Equity Long/Short Hedge Funds (2) $ 345,570 $ — Equity Funds (3) 32,478 12,150 Commodity Fund (4) 19,217 — Multi-asset Funds (5) 580,269 — Other Funds (6) 48,910 21,750 Total $ 1,026,444 $ 33,900 November 30, 2020 Equity Long/Short Hedge Funds (2) $ 328,096 $ — Equity Funds (3) 33,221 12,408 Commodity Fund (4) 17,747 — Multi-asset Funds (5) 561,236 — Other Funds (6) 25,084 5,000 Total $ 965,384 $ 17,408 (1) Where fair value is calculated based on NAV, fair value has been derived from each of the funds' capital statements. (2) This category includes investments in hedge funds that invest, long and short, primarily in both public and private equity securities in domestic and international markets. At both February 28, 2021 and November 30, 2020, approximately 94% of the fair value of investments in this category cannot be redeemed because these investments include restrictions that do not allow for redemption before December 31, 2021. At both February 28, 2021 and November 30, 2020, approximately 6% of the fair value of investments in this category are redeemable quarterly with 60 days prior written notice. (3) The investments in this category include investments in equity funds that invest in the equity of various U.S. and foreign private companies. These investments cannot be redeemed; instead distributions are received through the liquidation of the underlying assets of the funds, which are primarily expected to be liquidated in approximately one (4) This category includes investments in a hedge fund that invests, long and short, primarily in commodities. Investments in this category are redeemable quarterly with 60 days prior written notice. (5) This category includes investments in hedge funds that invest, long and short, primarily in multi-asset securities in domestic and international markets in both the public and private sectors. At both February 28, 2021 and November 30, 2020, investments representing approximately 57% of the fair value of investments in this category are redeemable monthly with 60 days prior written notice. (6) This category primarily includes investments in a fund that invests in short-term trade receivables and payables that are expected to generally be outstanding between 90 to 120 days and short-term credit instruments. These investments are redeemable quarterly with 90 days prior written notice. Investment in FXCM Our investment in FXCM and associated companies consists of a senior secured term loan due February 15, 2022 ($71.6 million principal outstanding at February 28, 2021), a 50% voting interest in FXCM and rights to a majority of all distributions in respect of the equity of FXCM. Our investment in the FXCM term loan is reported within Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition. We classify our equity investment in FXCM in the Consolidated Statements of Financial Condition as Loans to and investments in associated companies, as we have the ability to significantly influence FXCM through our seats on the board of directors. We estimate the fair value of our term loan by using a valuation model with inputs including management's assumptions concerning the amount and timing of expected cash flows, the loan's implied credit rating and effective yield. Because of these inputs and the degree of judgment involved, we have categorized our term loan within Level 3 of the fair value hierarchy. Loans to and Investments in Associated Companies Corporate bonds are measured primarily using pricing data from external pricing services and are categorized within Level 2 of the fair value hierarchy. Non-exchange-traded equity warrants with no pricing from external pricing services are generally categorized within Level 3 of the fair value hierarchy. The warrants are measured using the Black-Scholes model with key inputs impacting the valuation including the underlying security price, implied volatility, interest rate curve, strike price and maturity date. Other Secured Financings Other secured financings that are accounted for at fair value are classified within Level 3 of the fair value hierarchy. Fair value is based on estimates of future cash flows incorporating assumptions regarding recovery rates. Securities Received as Collateral and Obligations to Return Securities Received as Collateral In connection with securities-for-securities transactions in which we are the lender of securities and are permitted to sell or repledge the securities received as collateral, we report the fair value of the collateral received and the related obligation to return the collateral. Valuation is based on the price of the underlying security and is categorized within Level 1 of the fair value hierarchy. Short-term Borrowings and Long-term Debt Short-term borrowings that are accounted for at fair value include equity-linked notes, which are generally categorized within Level 2 of the fair value hierarchy, as the fair value is based on the price of the underlying equity security. Long-term debt includes variable rate, fixed-to-floating rate, equity-linked notes, constant maturity swap, digital and Bermudan structured notes. These are valued using various valuation models that incorporate Jefferies Group's own credit spread, market price quotations from external pricing sources referencing the appropriate interest rate curves, volatilities and other inputs as well as prices for transactions in a given note during the period. Long-term debt notes are generally categorized within Level 2 of the fair value hierarchy where market trades have been observed during the period or model pricing is available, otherwise the notes are categorized within Level 3. Nonrecurring Fair Value Measurements HomeFed has a 49% membership interest in the RedSky JZ Fulton Investors ("RedSky JZ Fulton Mall") joint venture, which owns a property in Brooklyn, New York. The property consists of 14 separate tax lots, divided into two development sites which may be redeveloped with buildings consisting of up to 540,000 square feet of floor area development rights. During the three months ended February 29, 2020, difficulties were encountered with attempts to refinance debt within the investment. We viewed this, combined with a softening of the Brooklyn, New York real estate market during the quarter, as a triggering event and evaluated HomeFed's equity method investment in RedSky JZ Fulton Mall to determine if there was an impairment. In connection with this evaluation, we obtained an appraisal which reflected a reduction in the value of the investment in comparison to an earlier appraisal obtained shortly before the beginning of the quarter. The appraisal was based off of Level 3 inputs consisting of prices of comparable properties and the appraisal indicated that the value of the property was worth less than the debt outstanding. HomeFed recorded an impairment charge of $55.6 million within Income (loss) related to associated companies during the three months ended February 29, 2020, which represented all of its carrying value in the joint venture. Due to a decline in oil and gas prices during the first quarter of 2020, JETX Energy performed an impairment analysis for its oil and gas properties in the East Eagle Ford. JETX Energy first determined the estimated undiscounted cash flows based on the reserves and costs utilized in its reserve report and then updated those cash flows based on strip pricing as of February 29, 2020. The expected undiscounted future net cash flows were then compared to the end of quarter net carrying value of the proven properties. As the undiscounted future net cash flows were lower than the carrying value, JETX Energy then determined the estimated fair value of the proven properties. To measure the estimated fair value of its proven properties, JETX Energy used unobservable Level 3 inputs, including a 10.0% discount rate and estimated future cash flows from its reserve report. The estimated fair value of JETX Energy's proven oil and gas properties in the East Eagle Ford totaled $9.6 million, which was $33.0 million lower than the carrying value as of the end of first quarter of 2020. As a result, an impairment charge of $33.0 million was recorded in Selling, general and other expenses during the three months ended February 29, 2020. Level 3 Rollforwards The following is a summary of changes in fair value of our financial assets and liabilities that have been categorized within Level 3 of the fair value hierarchy for the three months ended February 28, 2021 (in thousands): Balance, November 30, 2020 Total gains/ losses Purchases Sales Settlements Issuances Net transfers Balance, February 28, 2021 Changes in Assets: Financial instruments owned, at fair value: Corporate equity securities $ 75,904 $ 2,339 $ 4,805 $ (4,647) $ — $ — $ 23,664 $ 102,065 $ 1,165 Corporate debt securities 23,146 266 130 (6) — — (16,725) 6,811 297 CDOs and CLOs 17,972 3,840 11,427 (8,007) (5,806) — 13,773 33,199 3,214 Residential mortgage-backed securities 21,826 1,327 791 (627) (514) — (1,111) 21,692 1,347 Commercial mortgage-backed securities 2,003 (29) 1,105 (393) — — (15) 2,671 97 Other asset-backed securities 79,995 2,361 14,604 (20,909) (8,449) — (7,008) 60,594 1,721 Loans and other receivables 134,636 14,077 8,758 (44,427) (66) — 36,106 149,084 14,091 Investments at fair value 213,946 76,257 4,855 (30,159) (3,542) — (41,816) 219,541 72,173 FXCM term loan 59,455 2,677 — — — — — 62,132 2,677 Loans to and investments in associated companies 40,185 (788) — — — — — 39,397 (788) Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 4,434 $ 9 $ — $ — $ — $ — $ — $ 4,443 $ (22) Corporate debt securities 141 1,430 — — — — — 1,571 (1,430) Commercial mortgage-backed securities 35 — (35) 35 — — — 35 — Loans 16,635 1,559 (6,821) 3,358 — — 185 14,916 (1,559) Net derivatives (2) 26,017 43,727 — 12,670 (92) — 223,184 305,506 (43,727) Other secured financings 1,543 — — — — 625 — 2,168 — Long-term debt (1) 676,028 25,357 — — — 21,730 — 723,115 15,501 (1) Realized and unrealized gains/losses are primarily reported in Principal transact

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Feb. 28, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Derivative Financial Instruments Derivative activities are recorded at fair value in the Consolidated Statements of Financial Condition in Financial instruments owned, at fair value and Financial instruments sold, not yet purchased, at fair value, net of cash paid or received under credit support agreements and on a net counterparty basis when a legally enforceable right to offset exists under a master netting agreement. Predominantly, we enter into derivative transactions to satisfy the needs of our clients and to manage our own exposure to market and credit risks resulting from our trading activities. In addition, we apply hedge accounting to (1) interest rate swaps that have been designated as fair value hedges of the changes in fair value due to the benchmark interest rate for certain fixed rate senior long-term debt and (2) forward foreign exchange contracts designated as hedges to offset the change in the value of certain net investments in foreign operations. See Notes 3 and 18 for additional disclosures about derivative financial instruments. Derivatives are subject to various risks similar to other financial instruments, including market, credit and operational risk. The risks of derivatives should not be viewed in isolation, but rather should be considered on an aggregate basis along with our other trading-related activities. We manage the risks associated with derivatives on an aggregate basis along with the risks associated with proprietary trading as part of our firm wide risk management policies. In connection with our derivative activities, we may enter into International Swaps and Derivatives Association, Inc. master netting agreements or similar agreements with counterparties. The following tables present the fair value and related number of derivative contracts at February 28, 2021 and November 30, 2020 categorized by type of derivative contract and the platform on which these derivatives are transacted. The fair value of assets/liabilities represents our receivable/payable for derivative financial instruments, gross of counterparty netting and cash collateral received and pledged. The following tables also provide information regarding (1) the extent to which, under enforceable master netting arrangements, such balances are presented net in the Consolidated Statements of Financial Condition as appropriate under GAAP and (2) the extent to which other rights of setoff associated with these arrangements exist and could have an effect on our financial position (in thousands, except contract amounts). Assets Liabilities Fair Value Number of Fair Value Number of February 28, 2021 (1) Derivatives designated as accounting hedges: Interest rate contracts: Cleared OTC $ 45,638 1 $ 32,653 1 Foreign exchange contracts: Bilateral OTC — — 45,420 18 Total derivatives designated as accounting hedges 45,638 78,073 Derivatives not designated as accounting hedges: Interest rate contracts: Exchange-traded 2,626 46,454 2,305 16,056 Cleared OTC 404,775 4,746 305,691 4,364 Bilateral OTC 489,918 660 450,254 1,491 Foreign exchange contracts: Exchange-traded — — — 195 Bilateral OTC 470,949 18,733 450,054 18,609 Equity contracts: Exchange-traded 1,185,344 951,246 1,220,922 845,486 Bilateral OTC 495,951 2,435 1,529,978 2,487 Commodity contracts: Exchange-traded 304 3,057 — 2,070 Bilateral OTC — 1 8,712 1,515 Credit contracts: Cleared OTC 34,377 80 36,129 56 Bilateral OTC 4,648 13 8,635 15 Total derivatives not designated as accounting hedges 3,088,892 4,012,680 Total gross derivative assets/liabilities: Exchange-traded 1,188,274 1,223,227 Cleared OTC 484,790 374,473 Bilateral OTC 1,461,466 2,493,053 Amounts offset in the Consolidated Statement of Financial Condition (3): Exchange-traded (1,137,116) (1,137,116) Cleared OTC (372,819) (374,358) Bilateral OTC (1,094,672) (1,485,629) Net amounts in the Consolidated Statement of Financial Condition (4) $ 529,923 $ 1,093,650 (continued) Assets Liabilities Fair Value Number of Fair Value Number of November 30, 2020 (1) Derivatives designated as accounting hedges: Interest rate contracts: Cleared OTC $ 67,381 1 $ 6,891 — Foreign exchange contracts: Bilateral OTC — — 3,306 1 Total derivatives designated as accounting hedges 67,381 10,197 Derivatives not designated as accounting hedges: Interest rate contracts: Exchange-traded 2,442 52,620 439 42,611 Cleared OTC 17,379 3,785 114,524 4,307 Bilateral OTC 626,210 1,493 317,534 466 Foreign exchange contracts: Exchange-traded — — — 180 Bilateral OTC 297,165 15,005 277,706 15,050 Equity contracts: Exchange-traded 558,304 1,147,486 564,951 971,938 Bilateral OTC 429,304 2,374 1,125,944 2,421 Commodity contracts: Exchange-traded 64 3,207 — 2,654 Bilateral OTC 13,190 1,556 — — Credit contracts: Cleared OTC 24,696 39 26,298 31 Bilateral OTC 1,008 11 2,209 11 Total derivatives not designated as accounting hedges 1,969,762 2,429,605 Total gross derivative assets/liabilities: Exchange-traded 560,810 565,390 Cleared OTC 109,456 147,713 Bilateral OTC 1,366,877 1,726,699 Amounts offset in the Consolidated Statement of Financial Condition (3): Exchange-traded (546,989) (546,989) Cleared OTC (109,228) (111,654) Bilateral OTC (899,919) (1,140,016) Net amounts in the Consolidated Statement of Financial Condition (4) $ 481,007 $ 641,143 (1) Exchange-traded derivatives include derivatives executed on an organized exchange. Cleared OTC derivatives include derivatives executed bilaterally and subsequently novated to and cleared through central clearing counterparties. Bilateral OTC derivatives include derivatives executed and settled bilaterally without the use of an organized exchange or central clearing counterparty. (2) Number of exchange-traded contracts may include open futures contracts. The unsettled fair value of these futures contracts is included in Receivables and Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition. (3) Amounts netted include both netting by counterparty and for cash collateral paid or received. (4) We have not received or pledged additional collateral under master netting agreements and/or other credit support agreements that is eligible to be offset beyond what has been offset in the Consolidated Statements of Financial Condition. The following table provides information related to gains (losses) recognized in Interest expense of Jefferies Group in the Consolidated Statements of Operations related to fair value hedges (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Interest rate swaps $ (43,791) $ 24,465 Long-term debt 46,811 (24,867) Total $ 3,020 $ (402) The following table provides information related to gains (losses) on net investment hedges recognized in Net unrealized foreign exchange gains (losses), a component of Accumulated other comprehensive income (loss), in the Consolidated Statements of Comprehensive Income (Loss) (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Foreign exchange contracts $ (41,500) $ — Total $ (41,500) $ — The following table presents unrealized and realized gains (losses) on derivative contracts which are primarily recognized in Principal transactions revenues in the Consolidated Statements of Operations, which are utilized in connection with our client activities and our economic risk management activities (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Interest rate contracts $ (42,124) $ (1,089) Foreign exchange contracts 46,829 (2,321) Equity contracts (89,697) 136,888 Commodity contracts (18,349) 16,593 Credit contracts 821 1,830 Total $ (102,520) $ 151,901 The net gains (losses) on derivative contracts in the table above are one of a number of activities comprising our business activities and are before consideration of economic hedging transactions, which generally offset the net gains (losses) included above. We substantially mitigate our exposure to market risk on our cash instruments through derivative contracts, which generally provide offsetting revenues, and we manage the risk associated with these contracts in the context of our overall risk management framework. OTC Derivatives. The following tables set forth by remaining contract maturity the fair value of OTC derivative assets and liabilities as reflected in the Consolidated Statement of Financial Condition at February 28, 2021 (in thousands): OTC Derivative Assets (1) (2) (3) 0-12 Months 1-5 Years Greater Than Cross- Total Equity options and forwards $ 29,936 $ 1,526 $ 13,544 $ (20,365) $ 24,641 Credit default swaps 2 759 — — 761 Total return swaps 130,651 16,711 — (4,147) 143,215 Foreign currency forwards, swaps and options 85,919 13,318 — (5,524) 93,713 Interest rate swaps, options and forwards 163,707 138,245 154,279 (29,567) 426,664 Total $ 410,215 $ 170,559 $ 167,823 $ (59,603) 688,994 Cross product counterparty netting (24,263) Total OTC derivative assets included in Financial instruments owned, at fair value $ 664,731 (1) At February 28, 2021, we held net exchange-traded derivative assets, other derivative assets and other credit agreements with a fair value of $61.4 million, which are not included in this table. (2) OTC derivative assets in the table above are gross of collateral received. OTC derivative assets are recorded net of collateral received in the Consolidated Statements of Financial Condition. At February 28, 2021, cash collateral received was $196.2 million. (3) Derivative fair values include counterparty netting within product category. (4) Amounts represent the netting of receivable balances with payable balances for the same counterparty within product category across maturity categories. OTC Derivative Liabilities (1) (2) (3) 0-12 Months 1-5 Years Greater Than Cross-Maturity Total Commodity swaps, options and forwards $ 6,604 $ 2,108 $ — $ — $ 8,712 Equity options and forwards 19,834 522,218 143,586 (20,365) 665,273 Credit default swaps 20 3,530 — — 3,550 Total return swaps 152,604 382,556 1,641 (4,147) 532,654 Foreign currency forwards, swaps and options 114,279 8,811 — (5,524) 117,566 Fixed income forwards 5,359 — — — 5,359 Interest rate swaps, options and forwards 140,177 56,586 114,364 (29,567) 281,560 Total $ 438,877 $ 975,809 $ 259,591 $ (59,603) 1,614,674 Cross product counterparty netting (24,263) Total OTC derivative liabilities included in Financial instruments sold, not yet purchased, at fair value $ 1,590,411 (1) At February 28, 2021, we held net exchange-traded derivative liabilities, other derivative liabilities and other credit agreements with a fair value of $91.9 million, which are not included in this table. (2) OTC derivative liabilities in the table above are gross of collateral pledged. OTC derivative liabilities are recorded net of collateral pledged in the Consolidated Statements of Financial Condition. At February 28, 2021, cash collateral pledged was $588.7 million. (3) Derivative fair values include counterparty netting within product category. (4) Amounts represent the netting of receivable balances with payable balances for the same counterparty within product category across maturity categories. At February 28, 2021, the counterparty credit quality with respect to the fair value of our OTC derivative assets was as follows (in thousands): Counterparty credit quality (1): A- or higher $ 162,505 BBB- to BBB+ 38,774 BB+ or lower 201,073 Unrated 262,379 Total $ 664,731 (1) We utilize internal credit ratings determined by the Jefferies Group's Risk Management department. Credit ratings determined by Jefferies Group Risk Management use methodologies that produce ratings generally consistent with those produced by external rating agencies. Credit Related Derivative Contracts The external credit ratings of the underlyings or referenced assets for our written credit related derivative contracts are as follows (in millions): External Credit Rating Investment Grade Non-investment grade Unrated Total Notional February 28, 2021 Credit protection sold: Index credit default swaps $ 921.0 $ 459.0 $ — $ 1,380.0 Single name credit default swaps 87.2 6.2 0.2 93.6 November 30, 2020 Credit protection sold: Index credit default swaps $ 62.0 $ 262.8 $ — $ 324.8 Single name credit default swaps — 6.2 0.2 6.4 Contingent Features Certain of Jefferies Group's derivative instruments contain provisions that require its debt to maintain an investment grade credit rating from each of the major credit rating agencies. If Jefferies Group's debt was to fall below investment grade, it would be in violation of these provisions and the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on the derivative instruments in liability positions. The following table presents the aggregate fair value of all derivative instruments with such credit-risk-related contingent features that are in a liability position, the collateral amounts posted or received in the normal course of business and the potential collateral we would have been required to return and/or post additionally to our counterparties if the credit-risk-related contingent features underlying these agreements were triggered (in millions). February 28, November 30, 2020 Derivative instrument liabilities with credit-risk-related contingent features $ 464.6 $ 284.6 Collateral posted (33.0) (129.8) Collateral received 244.1 141.4 Return of and additional collateral required in the event of a credit rating downgrade below investment grade (1) 675.7 296.2 (1) These potential outflows include initial margin received from counterparties at the execution of the derivative contract. The initial margin will be returned if counterparties elect to terminate the contract after a downgrade. Other Derivatives Vitesse Energy Finance uses swaps and call and put options in order to reduce exposure to future oil price fluctuations. Vitesse Energy Finance accounts for the derivative instruments at fair value. The gains and losses associated with the change in fair value of the derivatives are recorded in Other revenues.

Collateralized Transactions

Collateralized Transactions	3 Months Ended
	Feb. 28, 2021
Collateralized Transactions [Abstract]
Collateralized Transactions	Collateralized TransactionsOur repurchase agreements and securities borrowing and lending arrangements are generally recorded at cost in the Consolidated Statements of Financial Condition, which is a reasonable approximation of their fair values due to their short-term nature. We enter into secured borrowing and lending arrangements to obtain collateral necessary to effect settlement, finance inventory positions, meet customer needs or re-lend as part of dealer operations. We monitor the fair value of the securities loaned and borrowed on a daily basis as compared with the related payable or receivable, and request additional collateral or return excess collateral, as appropriate. We pledge financial instruments as collateral under repurchase agreements, securities lending agreements and other secured arrangements, including clearing arrangements. Our agreements with counterparties generally contain contractual provisions allowing the counterparty the right to sell or repledge the collateral. Pledged securities owned that can be sold or repledged by the counterparty are included in Financial instruments owned, at fair value, and noted parenthetically as Securities pledged in the Consolidated Statements of Financial Condition. In instances where we receive securities as collateral in connection with securities-for-securities transactions in which we are the lender of securities and are permitted to sell or repledge the securities received as collateral, we report the fair value of the collateral received and the related obligation to return the collateral in the Consolidated Statements of Financial Condition. The following tables set forth the carrying value of securities lending arrangements, repurchase agreements and obligation to return securities received as collateral, at fair value, by class of collateral pledged and remaining contractual maturity (in thousands): Collateral Pledged Securities Lending Arrangements Repurchase Agreements Obligation to Return Securities Received as Collateral, at Fair Value Total February 28, 2021 Corporate equity securities $ 2,067,474 $ 245,823 $ — $ 2,313,297 Corporate debt securities 372,966 2,113,427 — 2,486,393 Mortgage-backed and asset-backed securities — 1,378,273 — 1,378,273 U.S. government and federal agency securities 20,353 9,417,370 — 9,437,723 Municipal securities — 138,344 — 138,344 Sovereign obligations 58,284 2,584,304 — 2,642,588 Loans and other receivables — 981,487 — 981,487 Total $ 2,519,077 $ 16,859,028 $ — $ 19,378,105 November 30, 2020 Corporate equity securities $ 1,371,978 $ 157,912 $ 7,517 $ 1,537,407 Corporate debt securities 369,218 1,869,844 — 2,239,062 Mortgage-backed and asset-backed securities — 1,547,140 — 1,547,140 U.S. government and federal agency securities 14,789 7,149,992 — 7,164,781 Municipal securities — 278,470 — 278,470 Sovereign obligations 54,763 2,763,032 — 2,817,795 Loans and other receivables — 1,392,883 — 1,392,883 Total $ 1,810,748 $ 15,159,273 $ 7,517 $ 16,977,538 Contractual Maturity Overnight and Continuous Up to 30 Days 31 to 90 Days Greater than 90 Days Total February 28, 2021 Securities lending arrangements $ 1,080,237 $ — $ 482,281 $ 956,559 $ 2,519,077 Repurchase agreements 7,711,109 3,146,550 3,313,696 2,687,673 16,859,028 Total $ 8,791,346 $ 3,146,550 $ 3,795,977 $ 3,644,232 $ 19,378,105 November 30, 2020 Securities lending arrangements $ 636,256 $ 59,735 $ 459,455 $ 655,302 $ 1,810,748 Repurchase agreements 5,510,476 1,747,526 5,019,885 2,881,386 15,159,273 Obligation to return securities received as collateral, at fair value 7,517 — — — 7,517 Total $ 6,154,249 $ 1,807,261 $ 5,479,340 $ 3,536,688 $ 16,977,538 We receive securities as collateral under resale agreements, securities borrowing transactions and customer margin loans. We also receive securities as collateral in connection with securities-for-securities transactions in which we are the lender of securities. In many instances, we are permitted by contract to rehypothecate the securities received as collateral. These securities may be used to secure repurchase agreements, enter into securities lending transactions, satisfy margin requirements on derivative transactions or cover short positions. At February 28, 2021 and November 30, 2020, the approximate fair value of securities received as collateral by us that may be sold or repledged was $32.8 billion and $25.9 billion, respectively. At February 28, 2021 and November 30, 2020, a substantial portion of the securities received have been sold or repledged. Offsetting of Securities Financing Agreements To manage our exposure to credit risk associated with securities financing transactions, we may enter into master netting agreements and collateral arrangements with counterparties. Generally, transactions are executed under standard industry agreements, including, but not limited to, master securities lending agreements (securities lending transactions) and master repurchase agreements (repurchase transactions). The following table provides information regarding repurchase agreements, securities borrowing and lending arrangements and securities received as collateral, at fair value, and obligation to return securities received as collateral, at fair value, that are recognized in the Consolidated Statements of Financial Condition and (1) the extent to which, under enforceable master netting arrangements, such balances are presented net in the Consolidated Statements of Financial Condition as appropriate under GAAP and (2) the extent to which other rights of setoff associated with these arrangements exist and could have an effect on our consolidated financial position. (In thousands) Gross Netting in Consolidated Statements of Financial Condition Net Amounts in Consolidated Statements of Financial Condition Additional Amounts Available for Setoff (1) Available Collateral (2) Net Amount (3) Assets at February 28, 2021 Securities borrowing arrangements $ 7,150,657 $ — $ 7,150,657 $ (567,061) $ (1,984,216) $ 4,599,380 Reverse repurchase agreements 16,331,676 (9,651,392) 6,680,284 (283,889) (6,328,407) 67,988 Liabilities at February 28, 2021 Securities lending arrangements $ 2,519,077 $ — $ 2,519,077 $ (567,061) $ (1,908,973) $ 43,043 Repurchase agreements 16,859,028 (9,651,392) 7,207,636 (283,889) (6,408,994) 514,753 Assets at November 30, 2020 Securities borrowing arrangements $ 6,934,762 $ — $ 6,934,762 $ (395,342) $ (1,706,046) $ 4,833,374 Reverse repurchase agreements 11,939,773 (6,843,004) 5,096,769 (412,327) (4,578,560) 105,882 Securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 Liabilities at November 30, 2020 Securities lending arrangements $ 1,810,748 $ — $ 1,810,748 $ (395,342) $ (1,397,550) $ 17,856 Repurchase agreements 15,159,273 (6,843,004) 8,316,269 (412,327) (7,122,422) 781,520 Obligation to return securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 (1) Under master netting agreements with our counterparties, we have the legal right of offset with a counterparty, which incorporates all of the counterparty's outstanding rights and obligations under the arrangement. These balances reflect additional credit risk mitigation that is available by a counterparty in the event of a counterparty's default, but which are not netted in the Consolidated Statements of Financial Condition because other netting provisions of GAAP are not met. (2) Includes securities received or paid under collateral arrangements with counterparties that could be liquidated in the event of a counterparty default and thus offset against a counterparty's rights and obligations under the respective repurchase agreements or securities borrowing or lending arrangements. (3) At February 28, 2021, amounts include $4,511.4 million of securities borrowing arrangements, for which we have received securities collateral of $4,383.8 million, and $505.0 million of repurchase agreements, for which we have pledged securities collateral of $520.2 million, which are subject to master netting agreements, but we have not determined the agreements to be legally enforceable. At November 30, 2020, amounts include $4,757.8 million of securities borrowing arrangements, for which we have received securities collateral of $4,617.0 million, and $720.0 million of repurchase agreements, for which we have pledged securities collateral of $733.9 million, which are subject to master netting agreements, but we have not determined the agreements to be legally enforceable. Cash and Securities Segregated and on Deposit for Regulatory Purposes or Deposited with Clearing and Depository Organizations Cash and securities segregated in accordance with regulatory regulations and deposited with clearing and depository organizations totaled $615.1 million and $604.3 million at February 28, 2021 and November 30, 2020, respectively. Segregated cash and securities consist of deposits in accordance with Rule 15c3-3 of the Securities Exchange Act of 1934, which subjects Jefferies LLC as a broker-dealer carrying customer accounts to requirements related to maintaining cash or qualified securities in segregated special reserve bank accounts for the exclusive benefit of its customers.

Securitization Activities

Securitization Activities	3 Months Ended
	Feb. 28, 2021
Transfers and Servicing [Abstract]
Securitization Activities	Securitization Activities We engage in securitization activities related to corporate loans, mortgage loans, consumer loans and mortgage-backed and other asset-backed securities. In our securitization transactions, we transfer these assets to special purpose entities ("SPEs") and act as the placement or structuring agent for the beneficial interests sold to investors by the SPE. A significant portion of our securitization transactions are the securitization of assets issued or guaranteed by U.S. government agencies. These SPEs generally meet the criteria of variable interest entities ("VIEs"); however, we generally do not consolidate the SPEs as we are not considered the primary beneficiary for these SPEs. We account for our securitization transactions as sales, provided we have relinquished control over the transferred assets. Transferred assets are carried at fair value with unrealized gains and losses reflected in Principal transactions revenues in the Consolidated Statements of Operations prior to the identification and isolation for securitization. Subsequently, revenues recognized upon securitization are reflected as net underwriting revenues. We generally receive cash proceeds in connection with the transfer of assets to an SPE. We may, however, have continuing involvement with the transferred assets, which is limited to retaining one or more tranches of the securitization (primarily senior and subordinated debt securities in the form of mortgage-backed and other asset-backed securities or CLOs). These securities are included in Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition and are generally initially categorized as Level 2 within the fair value hierarchy. The following table presents activity related to our securitizations that were accounted for as sales in which we had continuing involvement (in millions): For the Three Months Ended February 28, 2021 February 29, 2020 Transferred assets $ 3,583.5 $ 2,334.6 Proceeds on new securitizations 3,583.1 2,334.7 Cash flows received on retained interests 6.3 7.0 We have no explicit or implicit arrangements to provide additional financial support to these SPEs, have no liabilities related to these SPEs and do not have any outstanding derivative contracts executed in connection with these securitization activities at February 28, 2021 and November 30, 2020. The following table summarizes our retained interests in SPEs where we transferred assets and have continuing involvement and received sale accounting treatment (in millions): February 28, 2021 November 30, 2020 Securitization Type Total Retained Total Retained U.S. government agency residential mortgage-backed securities $ 505.5 $ 6.8 $ 562.5 $ 7.8 U.S. government agency commercial mortgage-backed securities 2,051.0 102.3 2,461.2 205.2 CLOs 5,712.5 70.2 3,345.5 39.5 Consumer and other loans 1,428.9 77.8 1,290.6 56.6 Total assets represent the unpaid principal amount of assets in the SPEs in which we have continuing involvement and are presented solely to provide information regarding the size of the transactions and the size of the underlying assets supporting our retained interests, and are not considered representative of the risk of potential loss. Assets retained in connection with a securitization transaction represent the fair value of the securities of one or more tranches issued by an SPE, including senior and subordinated tranches. Our risk of loss is limited to this fair value amount, which is included in total Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition. Although not obligated, in connection with secondary market-making activities we may make a market in the securities issued by these SPEs. In these market-making transactions, we buy these securities from and sell these securities to investors. Securities purchased through these market-making activities are not considered to be continuing involvement in these SPEs. To the extent we purchased securities through these market-making activities and we are not deemed to be the primary beneficiary of the VIE, these securities are included in agency and non-agency mortgage-backed and asset-backed securitizations in the nonconsolidated VIEs section presented in Note 7. Foursight Capital also utilizes SPEs to securitize automobile loans receivable. These SPEs are VIEs and our subsidiary is the primary beneficiary; the related assets and the secured borrowings are recognized in the Consolidated Statements of Financial Condition. These secured borrowings do not have recourse to our subsidiary's general credit. See Note 7 for further information on securitization activities and VIEs.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Feb. 28, 2021
Variable Interest Entity, Measure of Activity [Abstract]
Variable Interest Entities	Variable Interest Entities VIEs are entities in which equity investors lack the characteristics of a controlling financial interest. VIEs are consolidated by the primary beneficiary. The primary beneficiary is the party who has both (1) the power to direct the activities of a VIE that most significantly impact the entity's economic performance and (2) an obligation to absorb losses of the entity or a right to receive benefits from the entity that could potentially be significant to the entity. Our variable interests in VIEs include debt and equity interests, equity interests in associated companies, commitments, guarantees and certain fees. Our involvement with VIEs arises primarily from the following activities, but also includes other activities discussed below: • Purchases of securities in connection with our trading and secondary market-making activities; • Retained interests held as a result of securitization activities; • Acting as placement agent and/or underwriter in connection with client-sponsored securitizations; • Financing of agency and non-agency mortgage-backed and other asset-backed securities; • Warehouse funding arrangements for client-sponsored consumer and mortgage loan vehicles and CLOs through participation agreements, forward sale agreements, reverse repurchase agreements and revolving loan and note commitments; and • Loans to, investments in and fees from various investment vehicles. We determine whether we are the primary beneficiary of a VIE upon our initial involvement with the VIE and we reassess whether we are the primary beneficiary of a VIE on an ongoing basis. Our determination of whether we are the primary beneficiary of a VIE is based upon the facts and circumstances for each VIE and requires judgment. Our considerations in determining the VIE's most significant activities and whether we have power to direct those activities include, but are not limited to, the VIE's purpose and design and the risks passed through to investors, the voting interests of the VIE, management, service and/or other agreements of the VIE, involvement in the VIE's initial design and the existence of explicit or implicit financial guarantees. In situations where we have determined that the power over the VIE's significant activities is shared, we assess whether we are the party with the power over the most significant activities. If we are the party with the power over the most significant activities, we meet the "power" criteria of the primary beneficiary. If we do not have the power over the most significant activities or we determine that decisions require consent of each sharing party, we do not meet the "power" criteria of the primary beneficiary. We assess our variable interests in a VIE both individually and in aggregate to determine whether we have an obligation to absorb losses of or a right to receive benefits from the VIE that could potentially be significant to the VIE. The determination of whether our variable interest is significant to the VIE requires judgment. In determining the significance of our variable interest, we consider the terms, characteristics and size of the variable interests, the design and characteristics of the VIE, our involvement in the VIE and our market-making activities related to the variable interests. Consolidated VIEs The following table presents information about our consolidated VIEs (in millions). The assets and liabilities in the table below are presented prior to consolidation and thus a portion of these assets and liabilities are eliminated in consolidation. February 28, 2021 November 30, 2020 Secured Funding Vehicles Other Secured Funding Vehicles Other Cash (1) $ — $ 1.2 $ — $ 1.2 Financial instruments owned, at fair value — 12.6 — 5.2 Securities purchased under agreements to resell (2) 3,934.3 — 2,908.9 — Receivables 636.5 31.2 510.6 12.9 Other (3) 66.5 0.2 46.4 0.1 Total assets $ 4,637.3 $ 45.2 $ 3,465.9 $ 19.4 Financial instruments sold, not yet purchased, at fair $ — $ 9.4 $ — $ 2.5 Other secured financings (4) 4,637.4 — 3,425.0 — Other liabilities (5) 3.7 0.5 1.8 0.4 Total liabilities $ 4,641.1 $ 9.9 $ 3,426.8 $ 2.9 (1) Approximately $1.2 million and $0.7 million of the cash amounts at February 28, 2021 and November 30, 2020, respectively, represent cash on deposit with related consolidated entities and are eliminated in consolidation. (2) Securities purchased under agreements to resell primarily represent amounts due under collateralized transactions on related consolidated entities, which are eliminated in consolidation. (3) Approximately $9.7 million of the other assets amount at November 30, 2020 represents intercompany receivables with related consolidated entities, which are eliminated in consolidation. (4) Approximately $131.2 million and $138.2 million of the other secured financings amounts at February 28, 2021 and November 30, 2020, respectively, are with related consolidated entities, which are eliminated in consolidation. (5) Approximately $2.1 million and $0.3 million of the other liabilities amounts at February 28, 2021 and November 30, 2020, respectively, represent intercompany payables with related consolidated entities, which are eliminated in consolidation. Secured Funding Vehicles. We are the primary beneficiary of asset-backed financing vehicles to which we sell agency and non-agency residential and commercial mortgage loans and asset-backed securities pursuant to the terms of a master repurchase agreement. Our variable interests in these vehicles consist of our collateral margin maintenance obligations under the master repurchase agreement, which we manage, and retained interests in securities issued. The assets of these VIEs consist of reverse repurchase agreements, which are available for the benefit of the vehicle's debt holders. At February 28, 2021 and November 30, 2020, Foursight Capital is the primary beneficiary of SPEs it utilized to securitize automobile loans receivable. Foursight Capital acts as the servicer for which it receives a fee, and owns an equity interest in the SPEs. The notes issued by the SPEs are secured solely by the assets of the SPEs and do not have recourse to Foursight Capital's general credit and the assets of the VIEs are not available to satisfy any other debt. During the three months ended February 28, 2021, automobile loan receivables aggregating $228.6 million were securitized by Foursight Capital in connection with a secured borrowing offering. The majority of the proceeds from issuance of the secured borrowing were used to pay down Foursight Capital's two credit facilities. Other. We are the primary beneficiary of certain investment vehicles set up for the benefit of our employees. We manage and invest alongside our employees in these vehicles. The assets of these VIEs consist of private equity securities and are available for the benefit of the entities' equity holders. Our variable interests in these vehicles consist of equity securities. The creditors of these VIEs do not have recourse to our general credit and each such VIE's assets are not available to satisfy any other debt. Nonconsolidated VIEs The following table presents information about our variable interests in nonconsolidated VIEs (in millions): Carrying Amount Maximum VIE Assets Assets Liabilities February 28, 2021 CLOs $ 163.4 $ 5.4 $ 1,343.5 $ 9,595.0 Consumer loan and other asset-backed vehicles 266.9 — 363.3 2,580.5 Related party private equity vehicles 18.7 — 29.5 52.3 Other investment vehicles 909.7 — 1,050.0 14,167.7 Total $ 1,358.7 $ 5.4 $ 2,786.3 $ 26,395.5 November 30, 2020 CLOs $ 60.7 $ 0.2 $ 642.7 $ 6,849.1 Consumer loan and other asset-backed vehicles 251.6 — 377.2 2,462.7 Related party private equity vehicles 19.0 — 30.0 53.0 Other investment vehicles 899.9 — 1,042.9 15,735.5 Total $ 1,231.2 $ 0.2 $ 2,092.8 $ 25,100.3 Our maximum exposure to loss often differs from the carrying value of the variable interests. The maximum exposure to loss is dependent on the nature of the variable interests in our VIEs and is limited to the notional amounts of certain loan and equity commitments and guarantees. Our maximum exposure to loss does not include the offsetting benefit of any financial instruments that may be utilized to hedge the risks associated with our variable interests and is not reduced by the amount of collateral held as part of a transaction with a VIE. Collateralized Loan Obligations. Assets collateralizing the CLOs include bank loans, participation interests, sub-investment grade and senior secured U.S. loans and senior secured Euro denominated corporate leveraged loans and bonds. We underwrite securities issued in CLO transactions on behalf of sponsors and provide advisory services to the sponsors. We may also sell corporate loans to the CLOs. Our variable interests in connection with CLOs where we have been involved in providing underwriting and/or advisory services consist of the following: • Forward sale agreements whereby we commit to sell, at a fixed price, corporate loans and ownership interests in an entity holding such corporate loans to CLOs; • Warehouse funding arrangements in the form of: ◦ Participation interests in corporate loans held by CLOs and commitments to fund such participation interests; and ◦ Reverse repurchase agreements with collateral margin maintenance obligations and commitments to fund such reverse repurchase agreements; • Trading positions in securities issued in CLO transactions; and • Investments in variable funding notes issued by CLOs. Asset-Backed Vehicles. We provide financing and lending related services to certain client-sponsored VIEs in the form of revolving funding note agreements, revolving credit facilities, forward purchase agreements and reverse repurchase agreements. The underlying assets, which are collateralizing the vehicles, are primarily composed of unsecured consumer loans, mortgage loans and trade claims. In addition, we may provide structuring and advisory services and act as an underwriter or placement agent for securities issued by the vehicles. We do not control the activities of these entities. Related Party Private Equity Vehicles. We committed to invest in private equity funds (the "JCP Funds", including Jefferies Group's interests in Jefferies Capital Partners V L.P. and the Jefferies SBI USA Fund L.P. (together, "JCP Fund V")) managed by Jefferies Capital Partners, LLC (the "JCP Manager"). Additionally, we committed to invest in the general partners of the JCP Funds (the "JCP General Partners") and the JCP Manager. Our variable interests in the JCP Funds, JCP General Partners and JCP Manager (collectively, the "JCP Entities") consist of equity interests that, in total, provide us with limited and general partner investment returns of the JCP Funds, a portion of the carried interest earned by the JCP General Partners and a portion of the management fees earned by the JCP Manager. At both February 28, 2021 and November 30, 2020, our total equity commitment in the JCP Entities was $133.0 million, of which $122.1 million and $122.0 million, respectively, had been funded. The carrying value of our equity investments in the JCP Entities was $18.7 million and $19.0 million at February 28, 2021 and November 30, 2020, respectively. Our exposure to loss is limited to the total of our carrying value and unfunded equity commitment. The assets of the JCP Entities primarily consist of private equity and equity related investments. Other Investment Vehicles. The carrying amount of our equity investment was $909.7 million and $899.9 million at February 28, 2021 and November 30, 2020, respectively. Our unfunded equity commitment related to these investments totaled $140.3 million and $143.0 million at February 28, 2021 and November 30, 2020, respectively. Our exposure to loss is limited to the total of our carrying value and unfunded equity commitment. These investment vehicles have assets primarily consisting of private and public equity investments, debt instruments, trade and insurance claims and various oil and gas assets. Mortgage-Backed and Other Asset-Backed Secured Funding Vehicles. In connection with our secondary trading and market-making activities, we buy and sell agency and non-agency mortgage-backed securities and other asset-backed securities, which are issued by third-party securitization SPEs and are generally considered variable interests in VIEs. Securities issued by securitization SPEs are backed by residential mortgage loans, U.S. agency collateralized mortgage obligations, commercial mortgage loans, CDOs and CLOs and other consumer loans, such as installment receivables, auto loans and student loans. These securities are accounted for at fair value and included in Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition. We have no other involvement with the related SPEs and therefore do not consolidate these entities. We also engage in underwriting, placement and structuring activities for third-party-sponsored securitization trusts generally through agency (FNMA ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") or GNMA ("Ginnie Mae")) or non-agency-sponsored SPEs and may purchase loans or mortgage-backed securities from third-parties that are subsequently transferred into the securitization trusts. The securitizations are backed by residential and commercial mortgage, home equity and auto loans. We do not consolidate agency-sponsored securitizations as we do not have the power to direct the activities of the SPEs that most significantly impact their economic performance. Further, we are not the servicer of non-agency-sponsored securitizations and therefore do not have power to direct the most significant activities of the SPEs and accordingly, do not consolidate these entities. We may retain unsold senior and/or subordinated interests at the time of securitization in the form of securities issued by the SPEs. At February 28, 2021 and November 30, 2020, we held $1,642.6 million and $1,571.6 million of agency mortgage-backed securities, respectively, and $193.8 million and $252.0 million of non-agency mortgage-backed and other asset-backed securities, respectively, as a result of our secondary trading and market-making activities, and underwriting, placement and structuring activities. Our maximum exposure to loss on these securities is limited to the carrying value of our investments in these securities. These mortgage-backed and other asset-backed secured funding vehicles discussed are not included in the above table containing information about our variable interests in nonconsolidated VIEs. FXCM is considered a VIE and our term loan and equity ownership are variable interests. We have determined that we are not the primary beneficiary of FXCM because we do not have the power to direct the activities that most significantly impact FXCM's performance. Therefore, we do not consolidate FXCM and we account for our equity interest under the equity method as an investment in an associated company. FXCM reported total assets of $411.9 million in its latest financial statements. Our maximum exposure to loss as a result of our involvement with FXCM is limited to the carrying value of the term loan ($62.1 million) and the investment in associated company ($68.8 million), which totaled $130.9 million at February 28, 2021. FXCM is not included in the above table containing information about our variable interests in nonconsolidated VIEs.

Loans to and Investments in Ass

Loans to and Investments in Associated Companies	3 Months Ended
	Feb. 28, 2021
Equity Method Investments and Joint Ventures [Abstract]
Loans to and Investments in Associated Companies	Loans to and Investments in Associated Companies A summary of Loans to and investments in associated companies accounted for under the equity method of accounting during the three months ended February 28, 2021 and February 29, 2020 is as follows (in thousands): Loans to and investments in associated companies as of beginning of period Income (losses) related to associated companies Other income (losses) related to associated companies (1) Contributions to (distributions from) associated companies, net Other Loans to and investments in associated companies as of end of period 2021 Jefferies Finance $ 693,201 $ — $ 27,585 $ (40,542) $ — $ 680,244 Berkadia 301,152 — 30,018 (316) (61) 330,793 FXCM (2) 73,920 (5,462) — — 327 68,785 Linkem (3) 198,991 (9,107) — (8,783) — 181,101 Real estate associated companies 168,678 6,051 — (10,954) — 163,775 Other (3) 250,621 (2,050) 30,303 (14,524) — 264,350 Total $ 1,686,563 $ (10,568) $ 87,906 $ (75,119) $ 266 $ 1,689,048 2020 Jefferies Finance $ 673,867 $ — $ 5,119 $ 4,871 $ — $ 683,857 Berkadia 268,949 — 21,894 (36,165) 305 254,983 FXCM (2) 70,223 (1,638) — — (144) 68,441 Linkem 194,847 (13,185) — (359) (113) 181,190 Real estate associated companies (4) 255,309 (53,014) — (29,415) — 172,880 Other 189,762 (18) 1,746 551 9,236 201,277 Total $ 1,652,957 $ (67,855) $ 28,759 $ (60,517) $ 9,284 $ 1,562,628 (1) Primarily related to Jefferies Group and classified in Other revenues. (2) As further described in Note 3, our investment in FXCM includes both our equity method investment in FXCM and our term loan with FXCM. Our equity method investment is included in Loans to and investments in associated companies and our term loan is included in Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition. (3) Loans to and investments in associated companies at February 28, 2021 and November 30, 2020 include loans and debt securities aggregating $100.0 million and $104.1 million, respectively, related to Linkem and Other. (4) Income (loss) related to Real estate associated companies for the three months ended February 29, 2020 includes a non-cash charge of $55.6 million to fully write-off the value of HomeFed's RedSky JZ Fulton Mall joint venture investment related to a softening of the Brooklyn real estate market. Income (losses) related to associated companies includes the following (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 FXCM $ (5,462) $ (1,638) Linkem (9,107) (13,185) Real estate associated companies 6,051 (53,014) Other (2,050) (18) Total $ (10,568) $ (67,855) Other income (losses) related to associated companies (primarily related to Jefferies Group and classified in Other revenues) includes the following (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Jefferies Finance $ 27,585 $ 5,119 Berkadia 30,018 21,894 Other 30,303 1,746 Total $ 87,906 $ 28,759 Jefferies Finance Through Jefferies Group, we own 50% of Jefferies Finance LLC ("Jefferies Finance"), a joint venture entity pursuant to an agreement with Massachusetts Mutual Life Insurance Company ("MassMutual"). Jefferies Finance is a commercial finance company that structures, underwrites and arranges primarily senior secured loans to corporate borrowers, as well as manages loan funds and CLOs. Loans are originated primarily through the investment banking efforts of Jefferies LLC. Jefferies Finance may also underwrite and arrange other debt products such as second lien term, bridge and mezzanine loans, as well as related equity co-investments. In addition, Jefferies Finance is a registered investment advisor under the Investment Advisers Act of 1940 and, through two of its wholly-owned subsidiaries, Apex Credit Partners LLC and JFIN Asset Management LLC, acts as an investment advisor for various loan funds and CLOs managing direct lending and broadly syndicated loan products. At February 28, 2021, Jefferies Group and MassMutual each had equity commitments to Jefferies Finance of $750.0 million. At February 28, 2021, $652.4 million of Jefferies Group's commitment was funded. The investment commitment is scheduled to expire on March 1, 2022 with automatic one year extensions absent a 60-day termination notice by either party. Jefferies Finance has executed a Secured Revolving Credit Facility with Jefferies Group and MassMutual, to be funded equally, to support loan underwritings by Jefferies Finance, which bears interest based on the interest rates of the related Jefferies Finance underwritten loans and is secured by the underlying loans funded by the proceeds of the facility. The total Secured Revolving Credit Facility is a committed amount of $500.0 million at February 28, 2021. Advances are shared equally between Jefferies Group and MassMutual. The facility is scheduled to mature on March 1, 2022 with automatic one year extensions absent a 60-day termination notice by either party. At February 28, 2021, $0.0 million of Jefferies Group's $250.0 million commitment was funded. Jefferies Group recognized interest income and unfunded commitment fees related to the facility of $0.6 million and $1.1 million during the three months ended February 28, 2021 and February 29, 2020, respectively. The following summarizes activity related to our other transactions with Jefferies Finance (in millions): For the Three Months Ended February 28, 2021 February 29, 2020 Origination and syndication fee revenues (1) $ 70.3 $ 37.7 Origination fee expenses (1) 12.3 5.6 CLO placement fee revenues (2) 2.4 0.4 Underwriting fees (3) 0.5 0.3 Service fees (4) 31.5 25.2 (1) Jefferies Group engages in the origination and syndication of loans underwritten by Jefferies Finance. In connection with such services, Jefferies Group earned fees, which are recognized in Investment banking revenues in the Consolidated Statements of Operations. In addition, Jefferies Group paid fees to Jefferies Finance in respect of certain loans originated by Jefferies Finance, which are recognized in Selling, general and other expenses in the Consolidated Statements of Operations. (2) Jefferies Group acts as a placement agent for CLOs managed by Jefferies Finance, for which Jefferies Group recognized fees, which are included in Investment banking revenues in the Consolidated Statements of Operations. At February 28, 2021 and November 30, 2020, Jefferies Group held securities issued by CLOs managed by Jefferies Finance, which are included in Financial instruments owned, at fair value. (3) Jefferies Group acted as underwriter in connection with term loans issued by Jefferies Finance. (4) Under a service agreement, Jefferies Group charges Jefferies Finance for services provided. In connection with non-U.S. dollar loans originated by Jefferies Finance to borrowers who are investment banking clients of Jefferies Group, Jefferies Group has entered into an agreement to indemnify Jefferies Finance with respect to any foreign currency exposure. At February 28, 2021 and November 30, 2020, we had receivables from Jefferies Finance, included in Other assets in the Consolidated Statements of Financial Condition of $12.4 million and $24.2 million, respectively. At both February 28, 2021 and November 30, 2020, we had payables to Jefferies Finance, related to cash deposited with Jefferies Group, included in Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition of $13.7 million. Berkadia Berkadia is a commercial mortgage banking and servicing joint venture formed in 2009 with Berkshire Hathaway Inc. We and Berkshire Hathaway each contributed $217.2 million of equity capital to the joint venture and each have a 50% membership interest in Berkadia. We are entitled to receive 45% of the profits. Berkadia originates commercial/multifamily real estate loans that are sold to U.S. government agencies, and other investors. Berkadia also is an investment sales advisor focused on the multifamily industry. Berkadia is a servicer of commercial real estate loans in the U.S., performing primary, master and special servicing functions for U.S. government agency programs, commercial mortgage-backed securities transactions, banks, insurance companies and other financial institutions. Berkadia uses all of the proceeds from the commercial paper sales of an affiliate of Berkadia to fund new mortgage loans, servicer advances, investments and other working capital requirements. Repayment of the commercial paper is supported by a $1.5 billion surety policy issued by a Berkshire Hathaway insurance subsidiary and corporate guaranty, and we have agreed to reimburse Berkshire Hathaway for one-half of any losses incurred thereunder. At February 28, 2021, the aggregate amount of commercial paper outstanding was $1.47 billion. FXCM We have a 50% voting interest in FXCM, a provider of online foreign exchange trading services. We account for our equity interest in FXCM on a one month lag. We are amortizing our basis difference between the estimated fair value and the underlying book value of FXCM customer relationships, technology and tradename over their respective useful lives (weighted average life of 11 years). FXCM is considered a VIE and our term loan and equity interest are variable interests. We have determined that we are not the primary beneficiary of FXCM because we do not have the power to direct the activities that most significantly impact FXCM's performance. Therefore, we do not consolidate FXCM. Linkem We own approximately 42% of the common shares of Linkem, the largest fixed wireless broadband services provider in Italy. In addition, we own convertible preferred stock, which is automatically convertible to common shares in 2022, and warrants. If all of our convertible preferred stock was converted and warrants were exercised, it would increase our ownership to approximately 56% of Linkem's common equity at February 28, 2021. We have approximately 48% of the total voting securities of Linkem. Additionally, we have made shareholder loans to Linkem with principal outstanding of $103.6 million at February 28, 2021. We account for our equity interest in Linkem on a two month lag. Real Estate Associated Companies Real estate equity method investments primarily consist of HomeFed's interests in Brooklyn Renaissance Plaza and Hotel and 54 Madison. These equity interests are accounted for on a two month lag. Brooklyn Renaissance Plaza is comprised of a hotel operated by Marriott, an office building complex and a parking garage located in Brooklyn, New York. HomeFed owns a 25.8% equity interest in the hotel and a 61.25% equity interest in the office building and garage. Although HomeFed has a majority interest in the office building and garage, it does not have control, but only has the ability to exercise significant influence on this investment. As such, HomeFed accounts for the office building and garage under the equity method of accounting. We are amortizing our basis difference between the estimated fair value and the underlying book value of Brooklyn Renaissance office building and garage over the respective useful lives (weighted average life of 39 years).

Intangible Assets, Net and Good

Intangible Assets, Net and Goodwill	3 Months Ended
	Feb. 28, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, Net and Goodwill	Intangible Assets, Net and Goodwill A summary of Intangible assets, net and goodwill is as follows (in thousands): February 28, November 30, 2020 Indefinite-lived intangibles: Exchange and clearing organization membership interests and registrations $ 7,923 $ 7,884 Amortizable intangibles: Customer and other relationships, net of accumulated amortization of $122,163 and $119,694 49,344 51,285 Trademarks and tradenames, net of accumulated amortization of $29,680 and $28,585 99,924 100,255 Other, net of accumulated amortization of $9,574 and $8,953 7,108 7,729 Total intangible assets, net 164,299 167,153 Goodwill: Investment Banking and Capital Markets (1) 1,566,853 1,563,144 Asset Management 143,000 143,000 Real estate 36,711 36,711 Other operations 3,459 3,459 Total goodwill 1,750,023 1,746,314 Total intangible assets, net and goodwill $ 1,914,322 $ 1,913,467 (1) The increase in Investment Banking and Capital Markets goodwill during the three months ended February 28, 2021, primarily relates to translation adjustments. Amortization expense on intangible assets was $3.6 million and $3.8 million for the three months ended February 28, 2021 and February 29, 2020, respectively. The estimated aggregate future amortization expense for the intangible assets for each of the next five years is as follows (in thousands): Remainder of current year $ 10,789 2022 11,134 2023 9,900 2024 9,143 2025 8,632

Short-Term Borrowings

Short-Term Borrowings	3 Months Ended
	Feb. 28, 2021
Debt Disclosure [Abstract]
Short-Term Borrowings	Short-Term Borrowings Our short-term borrowings, which mature in one year or less, are as follows (in thousands): February 28, November 30, 2020 Bank loans (1) $ 876,141 $ 752,848 Floating rate puttable notes (1) 6,800 6,800 Equity-linked notes (2) — 5,067 Total short-term borrowings $ 882,941 $ 764,715 (1) These short-term borrowings are recorded at cost in the Consolidated Statements of Financial Condition, which is a reasonable approximation of their fair values due to their liquid and short-term nature. (2) See Note 3 for further information on these notes. At February 28, 2021 and November 30, 2020, the weighted average interest rate on short-term borrowings outstanding was 1.82% and 1.87% per annum, respectively. Our bank loans include facilities that contain certain covenants that, among other things, require us to maintain a specified level of tangible net worth and impose certain restrictions on the future indebtedness of certain of our subsidiaries that are borrowers. At February 28, 2021, we were in compliance with all covenants under these facilities. Our facilities included within bank loans are as follows (in thousands): February 28, November 30, 2020 Bank of New York Mellon Master Loan Agreement (1) $ 300,000 $ 300,000 JPMorgan Chase Bank, N.A. Credit Facility (2) 274,000 246,000 Royal Bank of Canada Credit Facility (3) 200,000 200,000 Bank of New York Mellon Credit Facility (4) 100,000 — Total $ 874,000 $ 746,000 (1) Interest is generally based at spreads over the Federal Funds Rate as defined in this master loan agreement. (2) Interest is based on an annual alternative base rate or an adjusted London Interbank Offered Rate ("LIBOR"), as defined in this credit facility agreement. (3) Interest is based on a rate per annum equal to LIBOR plus an applicable margin of 2.05%. (4) Interest is based on a rate per annum equal to the Federal Funds Rate plus 2%. In addition, the Bank of New York Mellon has agreed to make revolving intraday credit advances to Jefferies Group ("Intraday Credit Facility") for an aggregate committed amount of $150.0 million. The Intraday Credit Facility is structured so that advances are generally repaid before the end of each business day. However, if an advance is not repaid by the end of any business day, the advance is converted to an overnight loan. Intraday loans accrue interest at a rate of 0.12%. Interest is charged based on the number of minutes in a day the advance is outstanding. Overnight loans are charged interest at the base rate plus 3% on a daily basis. The base rate is the higher of the federal funds rate plus 0.50% or the prime rate in effect at that time. The Intraday Credit Facility contains financial covenants, which include a minimum regulatory net capital requirement for Jefferies Group's U.S. broker-dealer, Jefferies LLC. At February 28, 2021, Jefferies Group was in compliance with all debt covenants under the Intraday Credit Facility.

Long-Term Debt

Long-Term Debt	3 Months Ended
	Feb. 28, 2021
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt The principal amount (net of unamortized discounts, premiums and debt issuance costs), stated interest rate and maturity date of outstanding debt are as follows (dollars in thousands): February 28, November 30, 2020 Parent Company Debt: Senior Notes: 5.50% Senior Notes due October 18, 2023, $750,000 principal $ 746,215 $ 745,883 6.625% Senior Notes due October 23, 2043, $250,000 principal 246,843 246,828 Total long-term debt – Parent Company 993,058 992,711 Subsidiary Debt (non-recourse to Parent Company): Jefferies Group: 2.25% Euro Medium Term Notes, due July 13, 2022, $0 and $4,779 principal — 4,638 5.125% Senior Notes, due January 20, 2023, $750,000 principal 758,792 759,901 1.00% Euro Medium Term Notes, due July 19, 2024, $603,950 and $597,350 principal 602,401 595,700 4.85% Senior Notes, due January 15, 2027, $750,000 principal (1) 790,942 809,039 6.45% Senior Debentures, due June 8, 2027, $350,000 principal 368,445 369,057 4.15% Senior Notes, due January 23, 2030, $1,000,000 principal 989,807 989,574 2.75% Senior Notes, due October 15, 2032, $500,000 principal (1) 456,828 485,134 6.25% Senior Debentures, due January 15, 2036, $500,000 principal 510,724 510,834 6.50% Senior Notes, due January 20, 2043, $400,000 principal 419,719 419,826 Structured Notes (2) 1,784,157 1,712,245 Jefferies Group Revolving Credit Facility 189,893 189,732 Jefferies Group Secured Bank Loan 50,000 50,000 HomeFed EB-5 Program debt 191,486 191,294 HomeFed construction loan 45,949 45,471 Foursight Capital Credit Facilities — 129,000 Vitesse Energy Finance Revolving Credit Facility 90,949 97,883 Total long-term debt – subsidiaries 7,250,092 7,359,328 Long-term debt $ 8,243,150 $ 8,352,039 (1) The carrying value of these senior notes include a net gain of $46.8 million and a net loss of $24.9 million during the three months ended February 28, 2021 and February 29, 2020, respectively, associated with interest rate swaps based on designation as fair value hedges. See Note 4 for further information. (2) These structured notes contain various interest rate payment terms and are accounted for at fair value, with changes in fair value resulting from a change in the instrument specific credit risk presented in Accumulated other comprehensive income (loss) and changes in fair value resulting from non-credit components recognized in Principal transactions revenues. Gains and losses in the fair value of structured notes resulting from non-credit components are recognized within Other operating activities in the Consolidated Statements of Cash Flow. Subsidiary Debt : During the three months ended February 28, 2021, structured notes with a total principal amount of approximately $54.1 million, net of retirements, were issued by Jefferies Group. Jefferies Group has a revolving credit facility ("Jefferies Group Revolving Credit Facility") with a group of commercial banks. At February 28, 2021, borrowings under the Jefferies Group Revolving Credit Facility amounted to $189.9 million. Interest is based on an annual alternative base rate or an adjusted LIBOR, as defined in the Jefferies Group Revolving Credit Facility agreement. The Jefferies Group Revolving Credit Facility contains certain covenants that, among other things, requires Jefferies Group LLC to maintain specified level of tangible net worth and liquidity amounts, and imposes certain restrictions on future indebtedness of and requires specified levels of regulated capital for certain of Jefferies Group's subsidiaries. Throughout the three months ended February 28, 2021 and at February 28, 2021, no instances of noncompliance with the Jefferies Group Revolving Credit Facility covenants occurred and we expect to remain in compliance given Jefferies Group's current liquidity and anticipated funding requirements given its business plan and profitability expectations. One of Jefferies Group's subsidiaries has a Loan and Security Agreement with a bank for a term loan with a principal amount of $50.0 million ("Jefferies Group Secured Bank Loan"). This Jefferies Group Secured Bank Loan is collateralized by certain trading securities. Interest on the Jefferies Group Secured Bank Loan is 1.25% plus LIBOR. The agreement contains certain covenants that, among other things, restrict lien or encumbrance upon any of the pledged collateral. At February 28, 2021, Jefferies Group was in compliance with all covenants under the Loan and Security Agreement. HomeFed funds certain of its real estate projects in part by raising funds under the Immigrant Investor Program administered by the U.S. Citizenship and Immigration Services pursuant to the Immigration and Nationality Act ("EB-5 Program"). This program was created to stimulate the U.S. economy through the creation of jobs and capital investments in U.S. companies by foreign investors. This debt is secured by certain real estate of HomeFed. At February 28, 2021, HomeFed was in compliance with all debt covenants which include, among other requirements, limitations on incurrence of debt, collateral requirements and restricted use of proceeds. Primarily all of HomeFed's EB-5 Program debt matures in 2024 and 2025. At February 28, 2021, HomeFed has a construction loan agreement with an aggregate committed amount of $58.9 million. The proceeds are being used for construction at certain of its real estate projects. The outstanding principal amount of the loan bears interest based on the 30-day LIBOR plus 3.15%, subject to adjustment on the first of each calendar month. On March 1, 2021, HomeFed modified the loan to extend the maturity from March 1, 2021 to June 29, 2021 and reduced the maximum loan commitment from $58.9 million to $50.0 million. The loan is collateralized by the property underlying the related project with a guarantee by HomeFed. At February 28, 2021 and November 30, 2020, $46.6 million and $46.2 million, respectively, was outstanding under the construction loan agreement. At February 28, 2021, Foursight Capital's credit facilities consisted of two warehouse credit commitments aggregating $175.0 million. One of the credit facilities matures in May 2021 and bears interest based on the one-month LIBOR plus a credit spread fixed through its maturity and the other credit facility matures in October 2022 and bears interest based on a commercial paper rate plus a credit spread fixed through its maturity. As a condition of the credit facilities, Foursight Capital is obligated to maintain cash reserves to comply with the hedging requirements of the credit commitment. The credit facilities are secured by first priority liens on automobile loan receivables owed to Foursight Capital. At February 28, 2021 and November 30, 2020, $0.0 million and $129.3 million, respectively, was outstanding under Foursight Capital's credit facilities. Vitesse Energy Finance has a revolving credit facility with a syndicate of banks that matures in April 2023 and has a maximum borrowing base of $120.0 million at February 28, 2021. Amounts outstanding under the facility at February 28, 2021 and November 30, 2020 were $91.5 million and $98.5 million, respectively. Borrowings under the facility have been made as Eurodollar loans that bear interest at adjusted LIBOR plus a spread ranging from 2.5% to 3.5% based on the borrowing base utilization percentage. The credit facility is guaranteed by Vitesse Energy Finance's subsidiaries and is collateralized with a minimum of 85% of Vitesse Energy Finance's proved reserve value of its oil and gas properties. Vitesse Energy Finance's borrowing base is subject to regular re-determination on or about April 1 and October 1 of each year based on proved oil and gas reserves, hedge positions and estimated future cash flows from these reserves calculated using future commodity pricing provided by Vitesse Energy Finance's lenders.

Mezzanine Equity

Mezzanine Equity	3 Months Ended
	Feb. 28, 2021
Temporary Equity Disclosure [Abstract]
Mezzanine Equity	Mezzanine Equity Redeemable Noncontrolling Interests At February 28, 2021 and November 30, 2020, redeemable noncontrolling interests include other redeemable noncontrolling interests of $31.0 million and $24.7 million, respectively, primarily related to our oil and gas exploration and development businesses. Mandatorily Redeemable Convertible Preferred Shares We have one series of callable mandatorily redeemable cumulative convertible preferred shares ("Preferred Shares"). Our 125,000 Preferred Shares are callable beginning January 2023 at a price of $1,000 per share, plus accrued interest and are mandatorily redeemable in 2038 for $125.0 million. The Preferred Shares have a dividend rate equal to the sum of 3.25% annual, cumulative cash dividend, plus an additional quarterly payment based on the amount by which our common stock dividends exceed $0.0625 per common share. The Preferred Shares are currently convertible into 4,440,863 common shares, an effective conversion price of $28.15 per share.

Compensation Plans

Compensation Plans	3 Months Ended
	Feb. 28, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Compensation Plans	Compensation Plans Restricted Stock and Restricted Stock Units. Restricted stock and restricted stock units ("RSUs") may be granted to new employees as "sign-on" awards, to existing employees as "retention" awards and to certain executive officers as awards for multiple years. Sign-on and retention awards are generally subject to annual ratable vesting over a four year service period and are amortized as compensation expense on a straight-line basis over the related four years. Restricted stock and RSUs are granted to certain senior executives with market, performance and service conditions. Market conditions are incorporated into the grant-date fair value of senior executive awards using a Monte Carlo valuation model. Compensation expense for awards with market conditions is recognized over the service period and is not reversed if the market condition is not met. Awards with performance conditions are amortized over the service period if it is determined that it is probable that the performance condition will be achieved. Senior Executive Compensation Plan. In December 2020, the Compensation Committee of our Board of Directors granted certain senior executives nonqualified stock options and stock appreciation rights ("SAR"). The total initial fair value of the stock option and SAR awards were recorded as expense at the time of the grant as both have no future service requirements. The SAR awards will be settled on a cash basis or, at the sole discretion of the Compensation Committee, may be converted irrevocably to a stock-settled award and are considered to be liability-classified share-based awards. Subsequent changes in the fair value of the outstanding SAR awards are recognized currently on an ongoing basis in Compensation and benefits expense. For the three months ended February 28, 2021, we recorded $46.4 million of total Compensation and benefits expense relating to the stock option and SAR awards, of which $12.9 million was stock-based compensation and $33.5 million related to the SAR awards. Stock-Based Compensation Expense. Stock-based compensation expense relating to grants made under our share-based compensation plans was $20.7 million (including $12.9 million related to the senior executive stock option award, as discussed above) and $9.9 million for the three months ended February 28, 2021 and February 29, 2020, respectively. Total compensation cost includes the amortization of sign-on, retention and senior executive awards, less forfeitures and clawbacks. The total tax benefit recognized in results of operations related to stock-based compensation expenses was $5.1 million and $2.6 million for the three months ended February 28, 2021 and February 29, 2020, respectively. At February 28, 2021, total unrecognized compensation cost related to nonvested stock-based compensation plans was $37.1 million; this cost is expected to be recognized over a weighted average period of 1.7 years. At February 28, 2021, there were 1,414,000 shares of restricted stock outstanding with future service required, 2,862,000 RSUs outstanding with future service required (including target RSUs issuable under the senior executive compensation plan), 16,850,000 RSUs outstanding with no future service required, 2,791,000 stock options outstanding and 1,104,000 shares issuable under other plans. Additionally, the Preferred Shares are currently convertible into 4,440,863 common shares at an effective conversion price of $28.15 per share. The maximum potential increase to common shares outstanding resulting from these outstanding awards and the Preferred Shares is 28,048,000 at February 28, 2021. Restricted Cash Awards. Jefferies Group provides compensation to certain new and existing employees in the form of loans and/or other cash awards which are subject to ratable vesting terms with service requirements. These awards are amortized to compensation expense over the relevant service period, which is generally considered to start at the beginning of the annual compensation year. At February 28, 2021, the remaining unamortized amount of the restricted cash awards was $423.0 million and is included within Other assets in the Consolidated Statement of Financial Condition; this cost is expected to be recognized over a weighted average period of 3 years.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Feb. 28, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Activity in accumulated other comprehensive income (loss) is reflected in the Consolidated Statements of Comprehensive Income (Loss) and Consolidated Statements of Changes in Equity but not in the Consolidated Statements of Operations. A summary of accumulated other comprehensive income (loss), net of taxes is as follows (in thousands): February 28, November 30, 2020 Net unrealized gains on available for sale securities $ 453 $ 513 Net unrealized foreign exchange losses (145,635) (156,718) Net unrealized losses on instrument specific credit risk (140,587) (71,151) Net minimum pension liability (60,775) (61,561) $ (346,544) $ (288,917) Amounts reclassified out of accumulated other comprehensive income (loss) to net income are as follows (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Affected Line Item in the For the Three Months Ended February 28, February 29, Net unrealized gains (losses) on instrument specific credit risk, net of income tax provision (benefit) of $71 and $86 $ 222 $ 252 Principal transactions revenues Amortization of defined benefit pension plan actuarial losses, net of income tax benefit of $(261) and $(224) (786) (639) Selling, general and other expenses, which includes pension expense Total reclassifications for the period, net of tax $ (564) $ (387)

Revenues from Contracts with Cu

Revenues from Contracts with Customers	3 Months Ended
	Feb. 28, 2021
Revenue from Contract with Customer [Abstract]
Revenues from Contracts with Customers	Revenues from Contracts with Customers The following table presents our total revenues separated for our revenues from contracts with customers and our other sources of revenues (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Revenues from contracts with customers: Commissions and other fees $ 236,769 $ 179,430 Investment banking 1,003,612 592,002 Manufacturing revenues 137,847 77,607 Other 54,415 63,777 Total revenues from contracts with customers 1,432,643 912,816 Other sources of revenue: Principal transactions 919,901 404,864 Interest income 240,497 326,366 Other 110,547 48,218 Total revenues from other sources 1,270,945 779,448 Total revenues $ 2,703,588 $ 1,692,264 Revenues from contracts with customers are recognized when, or as, we satisfy our performance obligations by transferring the promised goods or services to the customers. A good or service is transferred to a customer when, or as, the customer obtains control of that good or service. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring our progress in satisfying the performance obligation in a manner that depicts the transfer of the goods or services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time that we determine the customer obtains control over the promised good or service. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for those promised goods or services (the "transaction price"). In determining the transaction price, we consider multiple factors, including the effects of variable consideration. Variable consideration is included in the transaction price only to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainties with respect to the amount are resolved. In determining when to include variable consideration in the transaction price, we consider the range of possible outcomes, the predictive value of our past experiences, the time period of when uncertainties expect to be resolved and the amount of consideration that is susceptible to factors outside of our influence, such as market volatility or the judgment and actions of third-parties. The following provides detailed information on the recognition of our revenues from contracts with customers: Commissions and Other Fees. We earn commission and other fee revenues by executing, settling and clearing transactions for clients primarily in equity, equity-related and futures products. Trade execution and clearing services, when provided together, represent a single performance obligation as the services are not separately identifiable in the context of the contract. Commission revenues associated with combined trade execution and clearing services, as well as trade execution services on a standalone basis, are recognized at a point in time on trade-date. Commission revenues are generally paid on settlement date and we record a receivable between trade-date and payment on settlement date. We permit institutional customers to allocate a portion of their gross commissions to pay for research products and other services provided by third-parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. We act as an agent in the soft dollar arrangements as the customer controls the use of the soft dollars and directs our payments to third-party service providers on its behalf. Accordingly, amounts allocated to soft dollar arrangements are netted against commission revenues in the Consolidated Statements of Operations. We also earn investment research fees for the sales of our proprietary investment research when a contract with a client has been identified. The delivery of investment research services represents a distinct performance obligation that is satisfied over time when the performance obligation is to provide ongoing access to a research platform or research analysts, with fees recognized on a straight-line basis over the period in which the performance obligation is satisfied. The performance obligation is satisfied at a point in time when the performance obligation is to provide individual interactions with research analysts or research events, with fees recognized on the interaction date. We earn account advisory and distribution fees in connection with wealth management services. Account advisory fees are recognized over time using the time-elapsed method as we determined that the customer simultaneously receives and consumes the benefits of investment advisory services as they are provided. Account advisory fees may be paid in advance of a specified service period or in arrears at the end of the specified service period (e.g., quarterly). Account advisory fees paid in advance are initially deferred within Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition. Distribution fees are variable and recognized when the uncertainties with respect to the amounts are resolved. Investment Banking. We provide our clients with a full range of financial advisory and underwriting services. Revenues from financial advisory services primarily consist of fees generated in connection with merger, acquisition and restructuring transactions. Advisory fees from mergers and acquisitions engagements are recognized at a point in time when the related transaction is completed, as the performance obligation is to successfully broker a specific transaction. Fees received prior to the completion of the transaction are deferred within Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition. Advisory fees from restructuring engagements are recognized over time using a time elapsed measure of progress as our clients simultaneously receive and consume the benefits of those services as they are provided. A significant portion of the fees we receive for our advisory services are considered variable as they are contingent upon a future event (e.g., completion of a transaction or third-party emergence from bankruptcy) and are excluded from the transaction price until the uncertainty associated with the variable consideration is subsequently resolved, which is expected to occur upon achievement of the specified milestone. Payment for advisory services are generally due promptly upon completion of a specified milestone or, for retainer fees, periodically over the course of the engagement. We recognize a receivable between the date of completion of the milestone and payment by the customer. Expenses associated with investment banking advisory engagements are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized at a point in time. All other investment banking advisory related expenses, including expenses incurred related to restructuring assignments, are expensed as incurred. All investment banking advisory expenses are recognized within their respective expense category in the Consolidated Statements of Operations and any expenses reimbursed by our clients are recognized as Investment banking revenues. Underwriting services include underwriting and placement agent services in both the equity and debt capital markets, including private equity placements, initial public offerings, follow-on offerings and equity-linked convertible securities transactions and structuring, underwriting and distributing public and private debt, including investment grade debt, high yield bonds, leveraged loans, municipal bonds and mortgage-backed and asset-backed securities. Underwriting and placement agent revenues are recognized at a point in time on trade-date, as the client obtains the control and benefit of the underwriting offering at that point. Costs associated with underwriting transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded, and are recorded on a gross basis within underwriting costs in the Consolidated Statements of Operations as we are acting as a principal in the arrangement. Any expenses reimbursed by our clients are recognized as Investment banking revenues. Asset Management Fees. We earn management and performance fees, recorded in Other revenues, in connection with investment advisory services provided to various funds and accounts, which are satisfied over time and measured using a time elapsed measure of progress as the customer receives the benefits of the services evenly throughout the term of the contract. Management and performance fees are considered variable as they are subject to fluctuation (e.g., changes in assets under management, market performance) and/or are contingent on a future event during the measurement period (e.g., meeting a specified benchmark) and are recognized only to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty is resolved. Management fees are generally based on month-end assets under management or an agreed upon notional amount and are included in the transaction price at the end of each month when the assets under management or notional amount is known. Performance fees are received when the return on assets under management for a specified performance period exceed certain benchmark returns, "high-water marks" or other performance targets. The performance period related to our performance fees is annual or semi-annual. Accordingly, performance fee revenue will generally be recognized only at the end of the performance period to the extent that the benchmark return has been met. Manufacturing Revenues. Idaho Timber's primary business consists of the sale of lumber that is manufactured or remanufactured at one of its locations. Agreements with customers for these sales specify the type, quantity and price of products to be delivered as well as the delivery date and payment terms. The transaction price is fixed at the time of sale and revenue is generally recognized when the customer takes control of the product. Disaggregation of Revenue The following presents our revenues from contracts with customers disaggregated by major business activity and primary geographic regions (in thousands): Reportable Segments Investment Banking and Capital Markets Asset Management Merchant Banking Corporate Consolidation Adjustments Total Three months ended February 28, 2021 Major Business Activity: Investment Banking - Advisory $ 311,439 $ — $ — $ — $ — $ 311,439 Investment Banking - Underwriting 692,223 — — — (50) 692,173 Equities (1) 233,539 — — — (169) 233,370 Fixed Income (1) 3,399 — — — — 3,399 Asset Management — 7,426 — — — 7,426 Manufacturing revenues — — 137,847 — — 137,847 Oil and gas revenues — — 32,009 — — 32,009 Other revenues — — 14,980 — — 14,980 Total revenues from contracts with customers $ 1,240,600 $ 7,426 $ 184,836 $ — $ (219) $ 1,432,643 Primary Geographic Region: Americas $ 1,026,916 $ 7,097 $ 184,338 $ — $ (219) $ 1,218,132 Europe 163,737 329 369 — — 164,435 Asia Pacific 49,947 — 129 — — 50,076 Total revenues from contracts with customers $ 1,240,600 $ 7,426 $ 184,836 $ — $ (219) $ 1,432,643 Three months ended February 29, 2020 Major Business Activity: Investment Banking - Advisory $ 343,158 $ — $ — $ — $ — $ 343,158 Investment Banking - Underwriting 248,844 — — — — 248,844 Equities (1) 176,249 — — — (105) 176,144 Fixed Income (1) 3,286 — — — — 3,286 Asset Management — 6,091 — — — 6,091 Manufacturing revenues — — 77,607 — — 77,607 Oil and gas revenues — — 42,214 — — 42,214 Other revenues — — 15,472 — — 15,472 Total revenues from contracts with customers $ 771,537 $ 6,091 $ 135,293 $ — $ (105) $ 912,816 Primary Geographic Region: Americas $ 649,069 $ 2,568 $ 134,779 $ — $ (105) $ 786,311 Europe 79,438 3,523 360 — — 83,321 Asia Pacific 43,030 — 154 — — 43,184 Total revenues from contracts with customers $ 771,537 $ 6,091 $ 135,293 $ — $ (105) $ 912,816 (1) Revenues from contracts with customers associated with the equities and fixed income businesses primarily represent commissions and other fee revenue. Information on Remaining Performance Obligations and Revenue Recognized from Past Performance We do not disclose information about remaining performance obligations pertaining to contracts that have an original expected duration of one year or less. The transaction price allocated to remaining unsatisfied or partially unsatisfied performance obligations with an original expected duration exceeding one year was not material at February 28, 2021. Investment banking advisory fees that are contingent upon completion of a specific milestone and fees associated with certain distribution services are also excluded as the fees are considered variable and not included in the transaction price at February 28, 2021. During the three months ended February 28, 2021 and February 29, 2020, we recognized $8.2 million and $6.4 million, respectively, of revenues related to performance obligations satisfied (or partially satisfied) in previous periods, mainly due to resolving uncertainties in variable consideration that was constrained in prior periods. In addition, we recognized $2.9 million and $5.6 million during the three months ended February 28, 2021 and February 29, 2020, respectively, of revenues primarily associated with distribution services, a portion of which relates to prior periods. Contract Balances The timing of our revenue recognition may differ from the timing of payment by customers. We record a receivable when revenue is recognized prior to payment and we have an unconditional right to payment. Alternatively, when payment precedes the provision of the related services, we record deferred revenue until the performance obligations are satisfied. We had receivables related to revenues from contracts with customers of $367.0 million and $332.5 million at February 28, 2021 and November 30, 2020, respectively. We had no significant impairments related to these receivables during the three months ended February 28, 2021 and February 29, 2020. Our deferred revenue primarily relates to retainer and milestone fees received in investment banking advisory engagements where the performance obligation has not yet been satisfied. Deferred revenues were $15.9 million and $14.8 million at February 28, 2021 and November 30, 2020, respectively, which are recorded as Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition. During the three months ended February 28, 2021, we recognized $6.9 million of deferred revenue from the balance at November 30, 2020. During the three months ended February 29, 2020, we recognized $5.6 million of deferred revenue from the balance at November 30, 2019. Contract Costs We capitalize costs to fulfill contracts associated with investment banking advisory engagements where the revenue is recognized at a point in time and the costs are determined to be recoverable. Capitalized costs to fulfill a contract are recognized at the point in time that the related revenue is recognized. At February 28, 2021 and November 30, 2020, capitalized costs to fulfill a contract were $1.3 million and $1.8 million, respectively, which are recorded in Receivables in the Consolidated Statements of Financial Condition. We recognized expenses of $1.2 million and $1.9 million, during the three months ended February 28, 2021 and February 29, 2020, respectively, related to costs to fulfill a contract that were capitalized as of the beginning of the period. There were no significant impairment charges recognized in relation to these capitalized costs during the three months ended February 28, 2021 and February 29, 2020.

Income Taxes

Income Taxes	3 Months Ended
	Feb. 28, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The aggregate amount of gross unrecognized tax benefits related to uncertain tax positions was $431.7 million (including $92.2 million for interest) at February 28, 2021, of which $258.9 million related to Jefferies Group, and was $401.4 million (including $87.1 million for interest) at November 30, 2020, of which $234.0 million related to Jefferies Group. If recognized, such amounts would lower our effective tax rate. We recognize interest and penalties, if any, related to unrecognized tax benefits in income tax expense. No material penalties were accrued for the three months ended February 28, 2021 and February 29, 2020. The net deferred tax asset was $410.4 million and $393.7 million at February 28, 2021 and November 30, 2020, respectively. The deferred tax asset is predominately attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, the largest component of which relates to compensation and benefits. The statute of limitations with respect to our federal income tax returns has expired for all years through 2016. We are currently under examination by various tax jurisdictions. Prior to becoming a wholly-owned subsidiary, Jefferies Group filed a consolidated U.S. federal income tax return with its qualifying subsidiaries and was subject to income tax in various states, municipalities and foreign jurisdictions and Jefferies Group is also currently under examination by various tax jurisdictions. We do not expect that resolution of these examinations will have a significant effect on the Consolidated Statements of Financial Condition, but could have a significant impact on the Consolidated Statements of Operations for the period in which resolution occurs. Our provision for income taxes for the three months ended February 28, 2021 was $218.2 million, representing an effective tax rate of 27.3%. Our provision for income taxes for the three months ended February 29, 2020 was $45.8 million, representing an effective tax rate of 29.0%.

Common Share and Earnings Per C

Common Share and Earnings Per Common Share	3 Months Ended
	Feb. 28, 2021
Earnings Per Share [Abstract]
Common Share and Earnings Per Common Share	Common Share and Earnings Per Common Share Basic and diluted earnings per share amounts were calculated by dividing net income by the weighted average number of common shares outstanding. The numerators and denominators used to calculate basic and diluted earnings per share are as follows (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Numerator for earnings per share: Net income attributable to Jefferies Financial Group Inc. common shareholders $ 582,435 $ 113,010 Allocation of earnings to participating securities (1) (3,216) (695) Net income attributable to Jefferies Financial Group Inc. common shareholders for basic earnings per share 579,219 112,315 Adjustment to allocation of earnings to participating securities related to diluted shares (1) 42 (3) Mandatorily redeemable convertible preferred share dividends 1,626 1,422 Net income attributable to Jefferies Financial Group Inc. common shareholders for diluted earnings per share $ 580,887 $ 113,734 Denominator for earnings per share: Weighted average common shares outstanding 249,352 286,682 Weighted average shares of restricted stock outstanding with future service required (1,461) (1,892) Weighted average RSUs outstanding with no future service required 18,495 17,616 Denominator for basic earnings per share – weighted average shares 266,386 302,406 Stock options 208 10 Senior executive compensation plan awards 1,846 1,423 Mandatorily redeemable convertible preferred shares 4,441 4,441 Denominator for diluted earnings per share 272,881 308,280 (1) Represents dividends declared during the period on participating securities plus an allocation of undistributed earnings to participating securities. Net losses are not allocated to participating securities. Participating securities represent restricted stock and RSUs for which requisite service has not yet been rendered and amounted to weighted average shares of 1,482,000 and 1,902,000 for the three months ended February 28, 2021 and February 29, 2020, respectively. Dividends declared on participating securities were not material during the three months ended February 28, 2021 and February 29, 2020. Undistributed earnings are allocated to participating securities based upon their right to share in earnings if all earnings for the period had been distributed. Our Board of Directors from time to time has authorized the repurchase of our common shares. In January 2020, the Board of Directors approved an increase of $250.0 million to the share repurchase authorization and in March 2020, the Board of Directors approved an additional share repurchase authorization of $100 million. In June 2020, the Board of Directors increased the share repurchase authorization by $176.7 million and in September 2020, the Board of Directors increased the share repurchase authorization by $128.0 million. In January 2021, the Board of Directors increased the share repurchase authorization by $192.8 million. During the three months ended February 28, 2021, we purchased a total of 5,000,000 of our common shares for an aggregate purchase price of $127.5 million, or an average price of $25.51 per share. At February 28, 2021, we had approximately $122.5 million available for future purchases. In March 2021, the Board of Directors increased the share repurchase authorization to $250.0 million, including the $122.5 million.

Commitments, Contingencies and

Commitments, Contingencies and Guarantees	3 Months Ended
	Feb. 28, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Guarantees	Commitments, Contingencies and Guarantees Commitments The following table summarizes commitments associated with certain business activities at February 28, 2021 (in millions): Expected Maturity Date 2021 2022 2023 2025 2027 Maximum Payout Equity commitments (1) $ 316.2 $ 151.0 $ 25.4 $ 10.9 $ 23.5 $ 527.0 Loan commitments (1) 57.5 260.0 25.0 2.0 — 344.5 Underwriting commitments 224.0 — — — — 224.0 Forward starting reverse repos (2) 5,703.8 193.7 4.2 — — 5,901.7 Forward starting repos (2) 3,627.2 — 4.2 — — 3,631.4 Other unfunded commitments (1) 135.3 25.0 136.1 — — 296.4 $ 10,064.0 $ 629.7 $ 194.9 $ 12.9 $ 23.5 $ 10,925.0 (1) Equity commitments, loan commitments and other unfunded commitments are generally presented by contractual maturity date. The amounts, however, are mostly available on demand. (2) At February 28, 2021, $5,894.4 million within forward starting securities purchased under agreements to resell and $3,631.4 million within forward starting securities sold under agreements to repurchase settled within three Equity Commitments. Equity commitments include a commitment to invest in Jefferies Group's joint venture, Jefferies Finance, and commitments to invest in private equity funds and in Jefferies Capital Partners, LLC, the manager of the private equity funds, which consists of a team led by our President and a Director. At February 28, 2021, Jefferies Group's outstanding commitments relating to Jefferies Capital Partners, LLC and its private equity funds were $10.8 million. See Note 8 for additional information regarding Jefferies Group's investment in Jefferies Finance. Additionally, at February 28, 2021, we had other outstanding equity commitments to invest up to $200.0 million to strategic affiliates and up to $218.5 million to various other investments. Loan Commitments. From time to time we make commitments to extend credit to investment banking and other clients in loan syndication and acquisition finance, and to strategic affiliates. These commitments and any related drawdowns of these facilities typically have fixed maturity dates and are contingent on certain representations, warranties and contractual conditions applicable to the borrower. At February 28, 2021, we had $80.0 million of outstanding loan commitments to clients and $5.9 million to strategic affiliates. Loan commitments outstanding at February 28, 2021 also include Jefferies Group's portion of the outstanding secured revolving credit facility provided to Jefferies Finance to support loan underwritings by Jefferies Finance. At February 28, 2021, $0.0 million of Jefferies Group's $250.0 million commitment was funded. Underwriting Commitments . In connection with investment banking activities, we may from time to time provide underwriting commitments to our clients in connection with capital raising transactions. Forward Starting Reverse Repos and Repos. We enter into commitments to take possession of securities with agreements to resell on a forward starting basis and to sell securities with agreements to repurchase on a forward starting basis that are primarily secured by U.S. government and agency securities. Other Unfunded Commitments. Other unfunded commitments include obligations in the form of revolving notes, warehouse financings and debt securities to provide financing to asset-backed and CLO vehicles. Upon advancing funds, drawn amounts are collateralized by the assets of an entity. Contingencies We and our subsidiaries are parties to legal and regulatory proceedings that are considered to be either ordinary, routine litigation incidental to their business or not significant to our consolidated financial position. We and our subsidiaries are also involved, from time to time, in other exams, investigations and similar reviews (both formal and informal) by governmental and self-regulatory agencies regarding our businesses, certain of which may result in judgments, settlements, fines, penalties or other injunctions. We do not believe that any of these actions will have a significant adverse effect on our consolidated financial position or liquidity, but any amounts paid could be significant to results of operations for the period. Guarantees Derivative Contracts. Our dealer activities cause us to make markets and trade in a variety of derivative instruments. Certain derivative contracts that we have entered into meet the accounting definition of a guarantee under GAAP, including credit default swaps, written foreign currency options and written equity put options. On certain of these contracts, such as written interest rate caps and foreign currency options, the maximum payout cannot be quantified since the increase in interest or foreign exchange rates are not contractually limited by the terms of the contract. As such, we have disclosed notional values as a measure of our maximum potential payout under these contracts. The following table summarizes the notional amounts associated with our derivative contracts meeting the definition of a guarantee under GAAP at February 28, 2021 (in millions): Expected Maturity Date Guarantee Type 2021 2022 2023 2025 2027 Notional/ Derivative contracts – non-credit related $ 11,232.2 $ 2,940.1 $ 8,807.2 $ 394.1 $ 12.1 $ 23,385.7 Written derivative contracts – credit related — — 6.4 87.2 — 93.6 Total derivative contracts $ 11,232.2 $ 2,940.1 $ 8,813.6 $ 481.3 $ 12.1 $ 23,479.3 The derivative contracts deemed to meet the definition of a guarantee under GAAP are before consideration of hedging transactions and only reflect a partial or "one-sided" component of any risk exposure. Written equity options and written credit default swaps are often executed in a strategy that is in tandem with long cash instruments (e.g., equity and debt securities). We substantially mitigate our exposure to market risk on these contracts through hedges, such as other derivative contracts and/or cash instruments, and we manage the risk associated with these contracts in the context of our overall risk management framework. We believe notional amounts overstate our expected payout and that fair value of these contracts is a more relevant measure of our obligations. At February 28, 2021, the fair value of derivative contracts meeting the definition of a guarantee is approximately $305.3 million. Berkadia. We have agreed to reimburse Berkshire Hathaway for up to one-half of any losses incurred under a $1.5 billion surety policy securing outstanding commercial paper issued by an affiliate of Berkadia. At February 28, 2021, the aggregate amount of commercial paper outstanding was $1.47 billion. HomeFed. For real estate development projects, HomeFed is generally required to obtain infrastructure improvement bonds at the beginning of construction work and warranty bonds upon completion of such improvements. These bonds are issued by surety companies to guarantee satisfactory completion of a project and provide funds primarily to a municipality in the event HomeFed is unable or unwilling to complete certain infrastructure improvements. As HomeFed develops the planned area and the municipality accepts the improvements, the bonds are released. Should the respective municipality or others draw on the bonds for any reason, certain of HomeFed's subsidiaries would be obligated to pay. At February 28, 2021, the aggregate amount of infrastructure improvement bonds outstanding was $71.3 million. Other Guarantees. We are members of various exchanges and clearing houses. In the normal course of business, we provide guarantees to securities clearing houses and exchanges. These guarantees generally are required under the standard membership agreements, such that members are required to guarantee the performance of other members. Additionally, if a member becomes unable to satisfy its obligations to the clearing house, other members would be required to meet these shortfalls. To mitigate these performance risks, the exchanges and clearing houses often require members to post collateral. Our obligations under such guarantees could exceed the collateral amounts posted. Our maximum potential liability under these arrangements cannot be quantified; however, the potential for us to be required to make payments under such guarantees is deemed remote. Accordingly, no liability has been recognized for these arrangements. Additionally, we provide certain indemnifications in connection with third-party clearing and execution arrangements whereby a third-party may clear and settle transactions on behalf of our clients. These indemnifications generally have standard contractual terms and are entered into in the ordinary course of business. Our obligations in respect of such transactions are secured by the assets in our client's account, as well as any proceeds received from the transactions cleared and settled on behalf of our client. However, we believe that it is unlikely we would have to make any material payments under these arrangements and no material liabilities related to these indemnifications have been recognized. Standby Letters of Credit. At February 28, 2021, we provided guarantees to certain counterparties in the form of standby letters of credit totaling $22.0 million. Standby letters of credit commit us to make payment to the beneficiary if the guaranteed party fails to fulfill its obligation under a contractual arrangement with that beneficiary. Since commitments associated with these collateral instruments may expire unused, the amount shown does not necessarily reflect the actual future cash funding requirement. Primarily all letters of credit expire within one year.

Net Capital Requirements

Net Capital Requirements	3 Months Ended
	Feb. 28, 2021
Brokers and Dealers [Abstract]
Net Capital Requirements	Net Capital Requirements Jefferies LLC operates as a broker-dealer registered with the U.S. Securities and Exchange Commission ("SEC") and a member firm of the Financial Industry Regulatory Authority ("FINRA"). Jefferies LLC is subject to the SEC Uniform Net Capital Rule ("Rule 15c3-1"), which requires the maintenance of minimum net capital and has elected to calculate minimum capital requirements using the alternative method permitted by Rule 15c3-1 in calculating net capital. Jefferies LLC, as a dually-registered U.S. broker-dealer and futures commission merchant ("FCM"), is also subject to Rule 1.17 of the Commodity Futures Trading Commission ("CFTC"), which sets forth minimum financial requirements. The minimum net capital requirement in determining excess net capital for a dually-registered U.S. broker-dealer and FCM is equal to the greater of the requirement under Rule 15c3-1 or CFTC Rule 1.17. Jefferies LLC's net capital and excess net capital at February 28, 2021 were $2,019.3 million and $1,902.9 million, respectively. FINRA is the designated examining authority for Jefferies LLC and the National Futures Association is the designated self-regulatory organization for Jefferies LLC as an FCM. Certain other U.S. and non-U.S. subsidiaries of Jefferies Group are subject to capital adequacy requirements as prescribed by the regulatory authorities in their respective jurisdictions, including Jefferies International Limited, which is authorized and regulated by the Financial Conduct Authority in the United Kingdom. The regulatory capital requirements referred to above may restrict our ability to withdraw capital from Jefferies Group's regulated subsidiaries. Some of our other consolidated subsidiaries also have credit agreements which may restrict the payment of cash dividends, or the ability to make loans or advances to the parent company.

Other Fair Value Information

Other Fair Value Information	3 Months Ended
	Feb. 28, 2021
Fair Value Disclosures [Abstract]
Other Fair Value Information	Other Fair Value Information The carrying amounts and estimated fair values of our principal financial instruments that are not recognized at fair value on a recurring basis are as follows (in thousands): February 28, 2021 November 30, 2020 Carrying Fair Carrying Fair Receivables: Notes and loans receivable (1) $ 748,642 $ 771,136 $ 727,492 $ 744,424 Financial Liabilities: Short-term borrowings (2) $ 882,941 $ 882,941 $ 759,648 $ 759,648 Long-term debt (3) 6,458,993 7,282,248 6,639,794 7,495,642 (1) Notes and loans receivable: The fair values are estimated principally based on a discounted future cash flows model using market interest rates for similar instruments. If measured at fair value in the financial statements, these financial instruments would be classified as Level 3 in the fair value hierarchy. (2) Short-term borrowings: The fair values of short-term borrowings carried at cost are estimated to be the carrying amount due to their short maturities. If measured at fair value in the financial statements, these financial instruments would be classified as Level 3 in the fair value hierarchy. (3) Long-term debt: The fair values are estimated using quoted prices, pricing information obtained from external data providers and, for certain variable rate debt, is estimated to be the carrying amount. If measured at fair value in the financial statements, these financial instruments would be classified as Level 2 and Level 3 in the fair value hierarchy.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Feb. 28, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Jefferies Capital Partners Related Funds. Jefferies Group has equity investments in the JCP Manager and in private equity funds (including JCP Fund V), which are managed by a team led by our President and a Director ("Private Equity Related Funds"). Reflected in the Consolidated Statements of Financial Condition at February 28, 2021 and November 30, 2020 are Jefferies Group's equity investments in Private Equity Related Funds of $18.7 million and $19.0 million, respectively. Net gains (losses) from Jefferies Group's investment in JCP Fund V aggregating $(0.5) million and $1.5 million for the three months ended February 28, 2021 and February 29, 2020, respectively, were recorded in Principal transactions revenues. Gains (losses) for other funds were not material. For further information regarding our commitments and funded amounts to the Private Equity Related Funds, see Notes 7 and 18. Berkadia Commercial Mortgage, LLC. At February 28, 2021 and November 30, 2020, Jefferies Group has commitments to purchase $580.1 million and $401.0 million, respectively, in agency commercial mortgage-backed securities from Berkadia. FXCM . Jefferies Group entered into a foreign exchange prime brokerage agreement with FXCM in 2017. In connection with the foreign exchange contracts entered into under this agreement, Jefferies Group had $0.1 million and $2.7 million at February 28, 2021 and November 30, 2020, respectively, included in Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition.

Segment Information

Segment Information	3 Months Ended
	Feb. 28, 2021
Segment Reporting [Abstract]
Segment Information	Segment Information We are engaged in investment banking and capital markets, asset management and direct investing. The Investment Banking and Capital Markets segment includes investment banking, capital markets and other related services. Investment banking provides underwriting and financial advisory services to clients across most industry sectors in the Americas, Europe and Asia Pacific. Capital markets businesses operate across the spectrum of equities and fixed income products. Our Asset Management segment comprises all asset management operations, including those within Jefferies Group. Within Asset Management, we manage, invest in and provide services to a diverse group of alternative asset management platforms across a spectrum of investment strategies and asset classes. Asset Management offers institutional clients an innovative range of investment strategies through its affiliated managers. Merchant Banking consists of our various merchant banking businesses and investments, primarily including Linkem, Vitesse Energy Finance and JETX Energy, real estate, Idaho Timber and FXCM. Corporate assets primarily consist of cash and cash equivalents. Corporate revenues primarily include interest income. Certain information concerning our segments is presented in the following table (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Net revenues: Reportable Segments: Investment Banking and Capital Markets $ 1,959,509 $ 1,148,829 Asset Management 226,734 20,329 Merchant Banking 297,503 204,559 Corporate 590 9,792 Total net revenues related to reportable segments 2,484,336 1,383,509 Consolidation adjustments 2,606 2,819 Total consolidated revenues $ 2,486,942 $ 1,386,328 Income (loss) before income taxes: Reportable Segments: Investment Banking and Capital Markets $ 543,283 $ 249,957 Asset Management 181,465 (20,929) Merchant Banking 107,617 (53,623) Corporate (20,477) (7,754) Income before income taxes related to reportable segments 811,888 167,651 Parent Company interest (13,902) (12,781) Consolidation adjustments 2,799 2,924 Total consolidated income before income taxes $ 800,785 $ 157,794 Depreciation and amortization expenses: Reportable Segments: Investment Banking and Capital Markets $ 20,684 $ 19,116 Asset Management 479 625 Merchant Banking 16,740 18,841 Corporate 864 888 Total consolidated depreciation and amortization expenses $ 38,767 $ 39,470 February 28, November 30, 2020 Identifiable Assets Employed: Reportable Segments: Investment Banking and Capital Markets $ 49,021,457 $ 44,835,126 Asset Management 2,713,231 3,231,059 Merchant Banking 3,276,351 3,173,064 Corporate 2,399,678 2,178,699 Identifiable assets employed related to reportable segments 57,410,717 53,417,948 Consolidation adjustments (541,798) (299,596) Total consolidated assets $ 56,868,919 $ 53,118,352

Basis of Presentation and Sig_2

Basis of Presentation and Significant Accounting Policies (Policy)	3 Months Ended
	Feb. 28, 2021
Accounting Policies [Abstract]
Credit Losses	Provision for credit losses are charged to income in amounts sufficient to maintain an allowance for credit losses inherent in Foursight Capital's finance receivables held for investment. The allowance for credit losses is established systematically by management based on the determination of the amount of credit losses inherent in the finance receivables held for investment as of the reporting date. All finance receivables held for investment of Foursight Capital are collectively evaluated for impairment. Management's estimate of expected credit losses is based on an evaluation of relevant information about past events, current conditions, and reasonable and supportable forecasts that affect the future collectability of the reported amounts. Foursight Capital uses static pool modeling techniques to determine the allowance for loan losses expected over the remaining life of the receivables, which is supplemented by management judgment. Expected losses are estimated for groups of accounts aggregated by monthly vintage. Generally, the expected losses are projected based on historical loss experience over the last eight years, more heavily weighted toward recent performance when determining the allowance to result in an estimate that is more reflective of the current internal and external environments. Foursight Capital's estimate of expected credit losses includes a reasonable and supportable forecast period of two years and then reverts to an estimate based on historical losses. Foursight Capital reviews charge-off experience factors, contractual delinquency, historical collection rates, the value of underlying collateral and other information to make the necessary judgments as to credit losses expected in the portfolio as of the reporting date. While management utilizes the best information available to make its evaluations, changes in macroeconomic conditions, interest rate environments, or both, may significantly impact the assumptions and inputs used in determining the allowance for credit losses. Foursight Capital's charge-off policy is based on a loan by loan review of delinquent finance receivables. The charge-off policy requires that balances be charged-off at the earlier of when they are 120 days contractually past due and the automobile has been in Foursight Capital's possession for at least 45 days, the month in which it has been determined in good faith that all amounts it expects to recover on a contract have been received, or at the end of the month in which they are 120 days contractually past due and the vehicle hasn’t been repossessed. The loans may be charged-off earlier than 120 days based upon management review of certain delinquent or impaired loans on an individual basis. Losses on finance receivables secured by automobiles are recognized at the time when anticipated losses are determined for contracts in repossession status. Foursight Capital generally initiates repossession proceedings when an account is three payments contractually past due. Other financial assets measured at amortized cost are presented at the net amount expected to be collected and the measurement of credit losses and any expected increases or decreases in expected credit losses are recognized in earnings. The estimate of expected credit losses involves judgment and based on an assessment over the life of the financial instrument taking into consideration forecasts of expected future economic conditions. In evaluating secured financing receivables (reverse repurchases agreements, securities borrowing arrangements and margin loans), the underlying collateral maintenance provisions are taken into consideration. The underlying contractual collateral maintenance for significantly all of Jefferies Group's secured financing receivables requires that the counterparty continually adjust the collateralization amount, securing the credit exposure on these contracts. Collateralization levels for Jefferies Group's secured financing receivables are initially established based upon the counterparty, the type of acceptable collateral that is monitored daily and adjusted to mitigate the potential of any credit losses. Credit losses are not recognized for secured financing receivables where the underlying collateral's fair value is equal to or exceeds the asset's amortized cost basis. In cases where the collateral's fair value does not equal or exceed the amortized cost basis, the allowance for credit losses, if any, is limited to the difference between the fair value of the collateral at the reporting date and the amortized cost basis of the financial assets. Our receivables from brokers, dealers, and clearing organizations include deposits of cash with exchange clearing organizations to meet margin requirements, amounts due from clearing organizations for daily variation settlements, securities failed-to-deliver or receive, receivables and payables for fees and commissions, and receivables arising from unsettled securities or loans transactions. These receivables generally do not give rise to material credit risk and have a remote probability of default either because of their short-term nature or due to the credit protection framework inherent in the design and operations of brokers, dealers and clearing organizations. As such, generally, no allowance for credit losses is held against these receivables.
Receivables	Based primarily on FICO credit scores, Foursight Capital classifies its finance receivables held for investment as prime, near-prime and sub-prime based on the perceived credit risk at origination and generally considers prime receivables as those with a FICO score of 680 and above, near-prime with scores between 620 and 679 and sub-prime with scores below 620.
Capitalization of Interest	We capitalize interest on qualifying HomeFed real estate assets.
Accounting Developments - Accounting Standards Adopted in Current Annual Reporting Period	Accounting Developments - Accounting Standards Adopted in Current Annual Reporting Period Financial Instruments - Credit Losses. In June 2016, the FASB issued new guidance which provides for estimating credit losses on financial assets measured at amortized cost by introducing an approach based on expected losses over the financial asset's entire life, recorded at inception or purchase. We adopted the new credit loss guidance on December 1, 2020 and applied a modified retrospective approach through a cumulative-effect adjustment to retained earnings upon adoption. At transition on December 1, 2020, the new accounting guidance's adoption resulted in an increase in the allowance for credit losses of $26.5 million with a corresponding decrease in retained earnings of $19.9 million, net of tax. The increase is primarily attributable to a $30.1 million increase in the allowance for credit losses in Foursight Capital's portfolio of finance receivables held for investment. Foursight Capital estimates expected credit losses on its portfolio using analysis of historical portfolio performance data as well as external economic factors that management considers to be relevant to the credit losses expected in the portfolio. This is partially offset by a $3.6 million decrease in the allowance for credit losses at Jefferies Group that is attributable to applying a revised provisioning methodology based on historical loss experience for its investment banking fee receivables. We have determined expected credit losses to be immaterial upon adoption for our other financial instruments within the scope of the guidance. A significant portion of our financial instruments within the scope of the guidance represent secured financing receivables (reverse repurchase agreements, secured borrowing arrangements, and margin loans) that are substantially collateralized. For our secured financing receivables, we have concluded that the impact upon adoption was immaterial because the contractual collateral maintenance provisions require that the counterparty continually adjust the amount of collateralization securing the credit exposure on these contracts. Collateralization levels for our secured financing receivables are initially established based upon the counterparty, the type of acceptable collateral that is monitored daily and adjusted to mitigate the potential of any credit losses. For the remaining financial instruments within the guidance's scope, the expected credit losses were also determined to be immaterial considering the counterparty's credit quality, an insignificant history of credit losses, or the short-term nature of the credit exposures. Goodwill. In January 2017, the FASB issued new guidance which simplifies goodwill impairment testing. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Defined Benefit Plans. In August 2018, the FASB issued new guidance to improve the effectiveness of disclosure requirements on defined benefit pension plans and other post-retirement plans. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Internal-Use Software. In August 2018, the FASB issued new guidance which amends the definition of a hosting arrangement and requires that the customer in a hosting arrangement that is a service contract capitalize certain implementation costs as if the arrangement was an internal-use software project. We adopted the guidance in the first quarter of fiscal 2021 and elected to apply the guidance prospectively to implementation costs incurred after the adoption date. The adoption did not have an impact on our consolidated financial statements on the adoption date. Consolidation. In October 2018, the FASB issued new guidance which requires indirect interests held through related parties under common control arrangements be considered on a proportional basis for determining whether fees paid to decision makers and service providers are variable interests. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements. Income Taxes. In December 2019, the FASB issued new guidance to simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and to provide more consistent application to improve the comparability of financial statements. We adopted the guidance in the first quarter of fiscal 2021 and the adoption did not have a material impact on our consolidated financial statements.

Basis of Presentation and Sig_3

Basis of Presentation and Significant Accounting Policies (Tables)	3 Months Ended
	Feb. 28, 2021
Accounting Policies [Abstract]
Schedule of Allowance for Credit Loss	A roll forward of the allowance for credit losses for the three months ended February 28, 2021 and February 29, 2020 is as follows (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Beginning balance $ 53,926 $ 34,018 Adjustment for change in accounting principle for current expected credit losses 26,519 — Provision for doubtful accounts 3,267 10,870 Charge-offs, net of recoveries (7,320) (10,850) Ending balance $ 76,392 $ 34,038
Supplemental Cash Flow Information	Supplemental Cash Flow Information For the Three Months Ended February 28, 2021 February 29, 2020 (In thousands) Cash paid during the year for: Interest $ 242,027 $ 365,842 Income tax payments (refunds), net $ 20,350 $ (10,697)

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	3 Months Ended
	Feb. 28, 2021
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured on Recurring Basis at Fair Value	The following is a summary of our financial assets and liabilities that are accounted for at fair value on a recurring basis, excluding Investments at fair value based on net asset value ("NAV") of $1,026.4 million and $965.4 million at February 28, 2021 and November 30, 2020, respectively, by level within the fair value hierarchy (in thousands): February 28, 2021 Level 1 Level 2 Level 3 Counterparty Total Assets: Financial instruments owned, at fair value: Corporate equity securities $ 2,873,165 $ 58,056 $ 102,065 $ — $ 3,033,286 Corporate debt securities — 3,451,833 6,811 — 3,458,644 Collateralized debt obligations and collateralized loan obligations — 91,654 33,199 — 124,853 U.S. government and federal agency securities 2,485,813 73,550 — — 2,559,363 Municipal securities — 292,604 — — 292,604 Sovereign obligations 1,668,975 799,239 — — 2,468,214 Residential mortgage-backed securities — 1,880,823 21,692 — 1,902,515 Commercial mortgage-backed securities — 37,013 2,671 — 39,684 Other asset-backed securities — 63,956 60,594 — 124,550 Loans and other receivables — 3,099,917 149,084 — 3,249,001 Derivatives 3,346 3,091,787 39,397 (2,604,607) 529,923 Investments at fair value — 6,399 219,541 — 225,940 FXCM term loan — — 62,132 — 62,132 Total financial instruments owned, at fair value, excluding investments at fair value based on NAV $ 7,031,299 $ 12,946,831 $ 697,186 $ (2,604,607) $ 18,070,709 Loans to and investments in associated $ — $ — $ 39,397 $ — $ 39,397 Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 2,124,994 $ 1,075 $ 4,443 $ — $ 2,130,512 Corporate debt securities — 1,824,458 1,571 — 1,826,029 U.S. government and federal agency securities 2,618,198 — — — 2,618,198 Sovereign obligations 1,343,920 1,016,688 — — 2,360,608 Commercial mortgage-backed securities — — 35 — 35 Loans — 2,326,306 14,916 — 2,341,222 Derivatives 2,173 3,743,677 344,903 (2,997,103) 1,093,650 Total financial instruments sold, not yet purchased, at fair value $ 6,089,285 $ 8,912,204 $ 365,868 $ (2,997,103) $ 12,370,254 Other secured financings $ — $ — $ 2,168 $ — $ 2,168 Long-term debt $ — $ 1,061,042 $ 723,115 $ — $ 1,784,157 November 30, 2020 Level 1 Level 2 Level 3 Counterparty Total Assets: Financial instruments owned, at fair value: Corporate equity securities $ 2,475,887 $ 58,159 $ 75,904 $ — $ 2,609,950 Corporate debt securities — 2,954,236 23,146 — 2,977,382 Collateralized debt obligations and collateralized loan obligations — 64,155 17,972 — 82,127 U.S. government and federal agency securities 2,840,025 91,653 — — 2,931,678 Municipal securities — 453,881 — — 453,881 Sovereign obligations 1,962,346 591,342 — — 2,553,688 Residential mortgage-backed securities — 1,100,849 21,826 — 1,122,675 Commercial mortgage-backed securities — 736,291 2,003 — 738,294 Other asset-backed securities — 103,611 79,995 — 183,606 Loans and other receivables — 2,610,746 134,636 — 2,745,382 Derivatives 1,523 2,013,942 21,678 (1,556,136) 481,007 Investments at fair value — 6,122 213,946 — 220,068 FXCM term loan — — 59,455 — 59,455 Total financial instruments owned, at fair value, excluding investments at fair value based on NAV $ 7,279,781 $ 10,784,987 $ 650,561 $ (1,556,136) $ 17,159,193 Loans to and investments in associated $ — $ 8,603 $ 40,185 $ — $ 48,788 Securities received as collateral, at fair value $ 7,517 $ — $ — $ — $ 7,517 Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 2,046,441 $ 9,046 $ 4,434 $ — $ 2,059,921 Corporate debt securities — 1,237,631 141 — 1,237,772 U.S. government and federal agency securities 2,609,660 — — — 2,609,660 Sovereign obligations 1,050,771 624,740 — — 1,675,511 Residential mortgage-backed securities — 477 — — 477 Commercial mortgage-backed securities — — 35 — 35 Loans — 1,776,446 16,635 — 1,793,081 Derivatives 551 2,391,556 47,695 (1,798,659) 641,143 Total financial instruments sold, not yet purchased, at fair value $ 5,707,423 $ 6,039,896 $ 68,940 $ (1,798,659) $ 10,017,600 Short-term borrowings $ — $ 5,067 $ — $ — $ 5,067 Other secured financings $ — $ — $ 1,543 $ — $ 1,543 Long-term debt $ — $ 1,036,217 $ 676,028 $ — $ 1,712,245 Obligation to return securities received as collateral, at fair value $ 7,517 $ — $ — $ — $ 7,517 (1) Represents counterparty and cash collateral netting across the levels of the fair value hierarchy for positions with the same counterparty.
Investments Measured at Fair Value Based on Net Asset Value	The following tables present information about our investments in entities that have the characteristics of an investment company (in thousands): Fair Value (1) Unfunded February 28, 2021 Equity Long/Short Hedge Funds (2) $ 345,570 $ — Equity Funds (3) 32,478 12,150 Commodity Fund (4) 19,217 — Multi-asset Funds (5) 580,269 — Other Funds (6) 48,910 21,750 Total $ 1,026,444 $ 33,900 November 30, 2020 Equity Long/Short Hedge Funds (2) $ 328,096 $ — Equity Funds (3) 33,221 12,408 Commodity Fund (4) 17,747 — Multi-asset Funds (5) 561,236 — Other Funds (6) 25,084 5,000 Total $ 965,384 $ 17,408 (1) Where fair value is calculated based on NAV, fair value has been derived from each of the funds' capital statements. (2) This category includes investments in hedge funds that invest, long and short, primarily in both public and private equity securities in domestic and international markets. At both February 28, 2021 and November 30, 2020, approximately 94% of the fair value of investments in this category cannot be redeemed because these investments include restrictions that do not allow for redemption before December 31, 2021. At both February 28, 2021 and November 30, 2020, approximately 6% of the fair value of investments in this category are redeemable quarterly with 60 days prior written notice. (3) The investments in this category include investments in equity funds that invest in the equity of various U.S. and foreign private companies. These investments cannot be redeemed; instead distributions are received through the liquidation of the underlying assets of the funds, which are primarily expected to be liquidated in approximately one (4) This category includes investments in a hedge fund that invests, long and short, primarily in commodities. Investments in this category are redeemable quarterly with 60 days prior written notice. (5) This category includes investments in hedge funds that invest, long and short, primarily in multi-asset securities in domestic and international markets in both the public and private sectors. At both February 28, 2021 and November 30, 2020, investments representing approximately 57% of the fair value of investments in this category are redeemable monthly with 60 days prior written notice.
Summary of Changes in Fair Value of Financial Assets and Liabilities Classified as Level 3	The following is a summary of changes in fair value of our financial assets and liabilities that have been categorized within Level 3 of the fair value hierarchy for the three months ended February 28, 2021 (in thousands): Balance, November 30, 2020 Total gains/ losses Purchases Sales Settlements Issuances Net transfers Balance, February 28, 2021 Changes in Assets: Financial instruments owned, at fair value: Corporate equity securities $ 75,904 $ 2,339 $ 4,805 $ (4,647) $ — $ — $ 23,664 $ 102,065 $ 1,165 Corporate debt securities 23,146 266 130 (6) — — (16,725) 6,811 297 CDOs and CLOs 17,972 3,840 11,427 (8,007) (5,806) — 13,773 33,199 3,214 Residential mortgage-backed securities 21,826 1,327 791 (627) (514) — (1,111) 21,692 1,347 Commercial mortgage-backed securities 2,003 (29) 1,105 (393) — — (15) 2,671 97 Other asset-backed securities 79,995 2,361 14,604 (20,909) (8,449) — (7,008) 60,594 1,721 Loans and other receivables 134,636 14,077 8,758 (44,427) (66) — 36,106 149,084 14,091 Investments at fair value 213,946 76,257 4,855 (30,159) (3,542) — (41,816) 219,541 72,173 FXCM term loan 59,455 2,677 — — — — — 62,132 2,677 Loans to and investments in associated companies 40,185 (788) — — — — — 39,397 (788) Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 4,434 $ 9 $ — $ — $ — $ — $ — $ 4,443 $ (22) Corporate debt securities 141 1,430 — — — — — 1,571 (1,430) Commercial mortgage-backed securities 35 — (35) 35 — — — 35 — Loans 16,635 1,559 (6,821) 3,358 — — 185 14,916 (1,559) Net derivatives (2) 26,017 43,727 — 12,670 (92) — 223,184 305,506 (43,727) Other secured financings 1,543 — — — — 625 — 2,168 — Long-term debt (1) 676,028 25,357 — — — 21,730 — 723,115 15,501 (1) Realized and unrealized gains/losses are primarily reported in Principal transactions revenues in the Consolidated Statements of Operations. Changes in instrument specific credit risk related to structured notes within long-term debt are included in the Consolidated Statements of Comprehensive Income (Loss), net of tax. Changes in unrealized gains/losses included in other comprehensive income (loss) for instruments still held at February 28, 2021 were losses of $40.9 million during the three months ended February 28, 2021. (2) Net derivatives represent Financial instruments owned, at fair value - Derivatives and Financial instruments sold, not yet purchased, at fair value - Derivatives. The following is a summary of changes in fair value of our financial assets and liabilities that have been categorized within Level 3 of the fair value hierarchy for the three months ended February 29, 2020 (in thousands): Balance, November 30, 2019 Total gains/ losses Purchases Sales Settlements Issuances Net transfers Balance, February 29, 2020 Changes in Assets: Financial instruments owned, at fair value: Corporate equity securities $ 58,426 $ (8,280) $ 2,792 $ (1,934) $ — $ — $ 52,679 $ 103,683 $ (8,291) Corporate debt securities 7,490 1,269 1,478 (503) (601) — 15,957 25,090 879 CDOs and CLOs 28,788 (1,940) 17,594 (17,833) (4) — 3,179 29,784 (1,698) Residential mortgage-backed securities 17,740 (280) — — (3) — (487) 16,970 (250) Commercial mortgage-backed securities 6,110 (306) — — (1,401) — (139) 4,264 571 Other asset-backed securities 42,563 (4,159) 81,323 (72,032) (1,974) — (3,818) 41,903 (3,797) Loans and other receivables 114,080 (4,307) 62,940 (13,042) (57,479) — 1,051 103,243 (6,187) Investments at fair value 205,412 (27,333) 6,504 (76) — — — 184,507 (27,333) FXCM term loan 59,120 2,508 — — — — — 61,628 2,508 Securities purchased under 25,000 — — — (25,000) — — — — Liabilities: Financial instruments sold, not yet purchased, at fair value: Corporate equity securities $ 4,487 $ 291 $ (513) $ — $ — $ — $ 10 $ 4,275 $ 65 Corporate debt securities 340 (189) (13,832) 14,079 369 — — 767 (35) Commercial mortgage-backed securities 35 — — — — — — 35 — Loans 9,463 1 (9,872) 2,781 — — 5,486 7,859 (1) Net derivatives (2) 77,168 (17,528) (278) 5,627 192 — 45,662 110,843 17,460 Long-term debt (1) 480,069 (9,016) — — — 128,475 (56,065) 543,463 (5,590) (1) Realized and unrealized gains/losses are primarily reported in Principal transactions revenues in the Consolidated Statements of Operations. Changes in instrument specific credit risk related to structured notes within long-term debt are included in the Consolidated Statements of Comprehensive Income (Loss), net of tax. Changes in unrealized gains (losses) included in other comprehensive income (loss) for instruments still held at February 29, 2020 were gains of $14.6 million during the three months ended February 29, 2020. (2) Net derivatives represent Financial instruments owned, at fair value - Derivatives and Financial instruments sold, not yet purchased, at fair value - Derivatives.
Quantitative Information About Significant Unobservable Inputs Used in Level 3 Fair Value Measurements	The tables below present information on the valuation techniques, significant unobservable inputs and their ranges for our financial assets and liabilities, subject to threshold levels related to the market value of the positions held, measured at fair value on a recurring basis with a significant Level 3 balance. The range of unobservable inputs could differ significantly across different firms given the range of products across different firms in the financial services sector. The inputs are not representative of the inputs that could have been used in the valuation of any one financial instrument (i.e., the input used for valuing one financial instrument within a particular class of financial instruments may not be appropriate for valuing other financial instruments within that given class). Additionally, the ranges of inputs presented below should not be construed to represent uncertainty regarding the fair values of our financial instruments; rather, the range of inputs is reflective of the differences in the underlying characteristics of the financial instruments in each category. For certain categories, we have provided a weighted average of the inputs allocated based on the fair values of the financial instruments comprising the category. We do not believe that the range or weighted average of the inputs is indicative of the reasonableness of uncertainty of our Level 3 fair values. The range and weighted average are driven by the individual financial instruments within each category and their relative distribution in the population. The disclosed inputs when compared with the inputs as disclosed in other periods should not be expected to necessarily be indicative of changes in our estimates of unobservable inputs for a particular financial instrument as the population of financial instruments comprising the category will vary from period to period based on purchases and sales of financial instruments during the period as well as transfers into and out of Level 3 each period. February 28, 2021 Fair Value (in thousands) Valuation Technique Significant Unobservable Input(s) Input/Range Weighted Average Financial instruments owned, at fair value Corporate equity securities $ 101,958 Non-exchange-traded Market approach Price $1 to $213 $62 EBITDA multiple 8.0 — Corporate debt securities $ 6,811 Scenario analysis Estimated recovery percentage 20 % to 44% 30 % CDOs and CLOs $ 31,885 Discounted cash flows Constant prepayment rate 8 % to 20% 19 % Constant default rate 2% — Loss severity 25 % to 35% 26 % Discount rate/yield 4 % to 21% 16 % Scenario analysis Estimated recovery percentage 16 % to 33% 23 % Residential mortgage- $ 21,692 Discounted cash flows Discount rate/yield 3 % to 4% 3 % Cumulative loss rate 3% — Duration (years) 3.0 years to 5.5 years 4.9 years Loss severity 35% — Commercial mortgage- $ 2,671 Discounted cash flows Loss severity 65% — Discount rate/yield 16% — Cumulative loss rate 10% — Duration (years) 0.2 years — Other asset-backed securities $ 60,594 Discounted cash flows Discount rate/yield 3 % to 14% 9 % Cumulative loss rate 8 % to 19% 13 % Duration (years) 0.9 years to 2.0 years 1.5 years Market approach Price $100 — Loans and other receivables $ 79,055 Market approach Price $31 to $101 $83 Scenario analysis Estimated recovery percentage 0 % to 100% 41 % Derivatives $ 38,014 Equity Options Volatility benchmarking Volatility 41 % to 57% 54 % Interest rate swaps Market approach Basis points upfront 0.7 to 6.4 3.3 Investments at fair value $ 89,889 Private equity securities Market approach Price $3 to $169 $38 Scenario analysis Estimated recovery percentage 17% — Discount rate/yield 19 % to 21% 20 % Revenue growth 0% — Investment in FXCM $ 62,132 Term loan Discounted cash flows Term based on the pay off (years) 0 months to 1.0 year 1.0 year Loans to and investments in associated companies Non-exchange-traded $ 39,397 Market approach Underlying stock price $675 — Underlying stock price €16 to €18 €17 Volatility 25 % to 60% 30 % Financial instruments sold, not yet purchased, at fair value Corporate equity securities $ 4,443 Market approach Price $1 — Corporate debt securities $ 1,571 Scenario analysis Estimated recovery percentage 20% — Loans $ 14,916 Market approach Price $31 to $50 $35 Scenario analysis Estimated recovery percentage 5% — Derivatives $ 344,903 Equity options Volatility benchmarking Volatility 29 % to 62% 46 % Interest rate swaps Market approach Basis points upfront 0.7 to 6.4 3.5 Other secured financings $ 2,168 Scenario analysis Estimated recovery percentage 19 % to 100% 61 % Long-term debt Structured notes $ 723,115 Market approach Price $104 — Price €82 to €112 €102 November 30, 2020 Fair Value Valuation Significant Input/Range Weighted Financial instruments owned, at fair value Corporate equity securities $ 75,409 Non-exchange-traded Market approach Price $1 to $213 $86 EBITDA multiple 4.0 to 8.0 5.7 Corporate debt securities $ 23,146 Market approach Price $69 — Scenario analysis Estimated recovery percentage 20 % to 44% 30 % CDOs and CLOs $ 17,972 Discounted cash flows Constant prepayment rate 20% — Constant default rate 2% — Loss severity 25 % to 30% 26 % Discount rate/yield 14 % to 28% 20 % Scenario analysis Estimated recovery percentage 2 % to 34% 23 % Residential mortgage- $ 21,826 Discounted cash flows Cumulative loss rate 2 % to 3% 3 % Loss severity 35 % to 50% 36 % Duration (years) 2.0 years to 12.9 years 5.1 years Discount rate/yield 3 % to 12% 4 % Other asset-backed securities $ 67,816 Discounted cash flows Cumulative loss rate 1 % to 28% 11 % Loss severity 50 % to 85% 54 % Duration (years) 0.2 years to 2.1 years 1.3 years Discount rate/yield 1 % to 16% 9 % Market approach Price $100 — Loans and other receivables $ 76,049 Market approach Price $31 to $100 $84 Scenario analysis Estimated recovery percentage 19 % to 100% 52 % Derivatives $ 19,951 Equity options Volatility benchmarking Volatility 47% — Interest rate swaps Market approach Basis points upfront 1.2 to 8.0 4.8 Investments at fair value $ 96,906 Private equity securities Market approach Price $1 to $169 $29 Scenario analysis Estimated recovery percentage 17% — Discount rate/yield 19 % to 21% 20 % Revenue growth 0% — Investment in FXCM $ 59,455 Term loan Discounted cash flows Term based on the pay off (years) 0 months to 1.2 years 1.2 years Loans to and investments in associated companies Non-exchange-traded $ 40,185 Market approach Underlying stock price $778 to $805 $792 Underlying stock price €15 to €19 €16 Volatility 25 % to 55% 30 % Financial instruments sold, not yet purchased, at fair value Corporate equity securities $ 4,434 Market approach Price $1 — Corporate debt securities $ 141 Scenario analysis Estimated recovery percentage 20% — Loans $ 16,635 Market approach Price $31 to $99 $55 Derivatives $ 46,971 Equity options Volatility benchmarking Volatility 33 % to 50% 42 % Interest rate swaps Market approach Basis points upfront 1.2 to 8.0 5.4 Other secured financings $ 1,543 Scenario analysis Estimated recovery percentage 19 % to 55% 45 % Long-term debt Structured notes $ 676,028 Market approach Price $100 — Price €76 to €113 €99
Summary of Gains (Losses) Due to Changes in Instrument Specific Credit Risk for Loans and Other Receivables and Loan Commitments Measured at Fair Value Under Fair Value Option	The following is a summary of gains (losses) due to changes in instrument specific credit risk on loans, other receivables and debt instruments and gains (losses) due to other changes in fair value on short-term borrowings and long-term debt measured at fair value under the fair value option (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Financial instruments owned, at fair value: Loans and other receivables $ 10,696 $ 1,739 Financial instruments sold, not yet purchased, at fair value: Loans $ — $ (610) Loan commitments — (661) Short-term borrowings: Changes in instrument specific credit risk (1) $ — $ 57 Other changes in fair value (2) — 12 Long-term debt: Changes in instrument specific credit risk (1) $ (91,982) $ 29,432 Other changes in fair value (2) 80,819 (37,642) (1) Changes in instrument specific credit risk related to structured notes are included in the Consolidated Statements of Comprehensive Income (Loss), net of tax.
Summary of Amount by Which Contractual Principal Exceeds Fair Value for Loans and Other Receivables Measured at Fair Value Under Fair Value Option	The following is a summary of the amounts by which contractual principal is greater than (less than) fair value for loans and other receivables, long-term debt and short-term borrowings and other secured financings measured at fair value under the fair value option (in thousands): February 28, November 30, 2020 Financial instruments owned, at fair value: Loans and other receivables (1) $ 5,826,957 $ 1,662,647 Loans and other receivables on nonaccrual status and/or 90 days or greater past due (1) (2) 252,790 287,889 Long-term debt and short-term borrowings $ (53,138) $ (42,819) Other secured financings $ 2,782 $ 2,782 (1) Interest income is recognized separately from other changes in fair value and is included in Interest income in the Consolidated Statements of Operations.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Feb. 28, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value and Related Number of Derivative Contracts Categorized by Predominant Risk Exposure	The following tables present the fair value and related number of derivative contracts at February 28, 2021 and November 30, 2020 categorized by type of derivative contract and the platform on which these derivatives are transacted. The fair value of assets/liabilities represents our receivable/payable for derivative financial instruments, gross of counterparty netting and cash collateral received and pledged. The following tables also provide information regarding (1) the extent to which, under enforceable master netting arrangements, such balances are presented net in the Consolidated Statements of Financial Condition as appropriate under GAAP and (2) the extent to which other rights of setoff associated with these arrangements exist and could have an effect on our financial position (in thousands, except contract amounts). Assets Liabilities Fair Value Number of Fair Value Number of February 28, 2021 (1) Derivatives designated as accounting hedges: Interest rate contracts: Cleared OTC $ 45,638 1 $ 32,653 1 Foreign exchange contracts: Bilateral OTC — — 45,420 18 Total derivatives designated as accounting hedges 45,638 78,073 Derivatives not designated as accounting hedges: Interest rate contracts: Exchange-traded 2,626 46,454 2,305 16,056 Cleared OTC 404,775 4,746 305,691 4,364 Bilateral OTC 489,918 660 450,254 1,491 Foreign exchange contracts: Exchange-traded — — — 195 Bilateral OTC 470,949 18,733 450,054 18,609 Equity contracts: Exchange-traded 1,185,344 951,246 1,220,922 845,486 Bilateral OTC 495,951 2,435 1,529,978 2,487 Commodity contracts: Exchange-traded 304 3,057 — 2,070 Bilateral OTC — 1 8,712 1,515 Credit contracts: Cleared OTC 34,377 80 36,129 56 Bilateral OTC 4,648 13 8,635 15 Total derivatives not designated as accounting hedges 3,088,892 4,012,680 Total gross derivative assets/liabilities: Exchange-traded 1,188,274 1,223,227 Cleared OTC 484,790 374,473 Bilateral OTC 1,461,466 2,493,053 Amounts offset in the Consolidated Statement of Financial Condition (3): Exchange-traded (1,137,116) (1,137,116) Cleared OTC (372,819) (374,358) Bilateral OTC (1,094,672) (1,485,629) Net amounts in the Consolidated Statement of Financial Condition (4) $ 529,923 $ 1,093,650 (continued) Assets Liabilities Fair Value Number of Fair Value Number of November 30, 2020 (1) Derivatives designated as accounting hedges: Interest rate contracts: Cleared OTC $ 67,381 1 $ 6,891 — Foreign exchange contracts: Bilateral OTC — — 3,306 1 Total derivatives designated as accounting hedges 67,381 10,197 Derivatives not designated as accounting hedges: Interest rate contracts: Exchange-traded 2,442 52,620 439 42,611 Cleared OTC 17,379 3,785 114,524 4,307 Bilateral OTC 626,210 1,493 317,534 466 Foreign exchange contracts: Exchange-traded — — — 180 Bilateral OTC 297,165 15,005 277,706 15,050 Equity contracts: Exchange-traded 558,304 1,147,486 564,951 971,938 Bilateral OTC 429,304 2,374 1,125,944 2,421 Commodity contracts: Exchange-traded 64 3,207 — 2,654 Bilateral OTC 13,190 1,556 — — Credit contracts: Cleared OTC 24,696 39 26,298 31 Bilateral OTC 1,008 11 2,209 11 Total derivatives not designated as accounting hedges 1,969,762 2,429,605 Total gross derivative assets/liabilities: Exchange-traded 560,810 565,390 Cleared OTC 109,456 147,713 Bilateral OTC 1,366,877 1,726,699 Amounts offset in the Consolidated Statement of Financial Condition (3): Exchange-traded (546,989) (546,989) Cleared OTC (109,228) (111,654) Bilateral OTC (899,919) (1,140,016) Net amounts in the Consolidated Statement of Financial Condition (4) $ 481,007 $ 641,143 (1) Exchange-traded derivatives include derivatives executed on an organized exchange. Cleared OTC derivatives include derivatives executed bilaterally and subsequently novated to and cleared through central clearing counterparties. Bilateral OTC derivatives include derivatives executed and settled bilaterally without the use of an organized exchange or central clearing counterparty. (2) Number of exchange-traded contracts may include open futures contracts. The unsettled fair value of these futures contracts is included in Receivables and Payables, expense accruals and other liabilities in the Consolidated Statements of Financial Condition. (3) Amounts netted include both netting by counterparty and for cash collateral paid or received. (4) We have not received or pledged additional collateral under master netting agreements and/or other credit support agreements that is eligible to be offset beyond what has been offset in the Consolidated Statements of Financial Condition.
Unrealized and Realized Gains (Losses) on Derivative Contracts	The following table provides information related to gains (losses) recognized in Interest expense of Jefferies Group in the Consolidated Statements of Operations related to fair value hedges (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Interest rate swaps $ (43,791) $ 24,465 Long-term debt 46,811 (24,867) Total $ 3,020 $ (402) The following table provides information related to gains (losses) on net investment hedges recognized in Net unrealized foreign exchange gains (losses), a component of Accumulated other comprehensive income (loss), in the Consolidated Statements of Comprehensive Income (Loss) (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Foreign exchange contracts $ (41,500) $ — Total $ (41,500) $ — The following table presents unrealized and realized gains (losses) on derivative contracts which are primarily recognized in Principal transactions revenues in the Consolidated Statements of Operations, which are utilized in connection with our client activities and our economic risk management activities (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Interest rate contracts $ (42,124) $ (1,089) Foreign exchange contracts 46,829 (2,321) Equity contracts (89,697) 136,888 Commodity contracts (18,349) 16,593 Credit contracts 821 1,830 Total $ (102,520) $ 151,901
Remaining Contract Maturity of Fair Value of OTC Derivative Assets and Liabilities	The following tables set forth by remaining contract maturity the fair value of OTC derivative assets and liabilities as reflected in the Consolidated Statement of Financial Condition at February 28, 2021 (in thousands): OTC Derivative Assets (1) (2) (3) 0-12 Months 1-5 Years Greater Than Cross- Total Equity options and forwards $ 29,936 $ 1,526 $ 13,544 $ (20,365) $ 24,641 Credit default swaps 2 759 — — 761 Total return swaps 130,651 16,711 — (4,147) 143,215 Foreign currency forwards, swaps and options 85,919 13,318 — (5,524) 93,713 Interest rate swaps, options and forwards 163,707 138,245 154,279 (29,567) 426,664 Total $ 410,215 $ 170,559 $ 167,823 $ (59,603) 688,994 Cross product counterparty netting (24,263) Total OTC derivative assets included in Financial instruments owned, at fair value $ 664,731 (1) At February 28, 2021, we held net exchange-traded derivative assets, other derivative assets and other credit agreements with a fair value of $61.4 million, which are not included in this table. (2) OTC derivative assets in the table above are gross of collateral received. OTC derivative assets are recorded net of collateral received in the Consolidated Statements of Financial Condition. At February 28, 2021, cash collateral received was $196.2 million. (3) Derivative fair values include counterparty netting within product category. (4) Amounts represent the netting of receivable balances with payable balances for the same counterparty within product category across maturity categories. OTC Derivative Liabilities (1) (2) (3) 0-12 Months 1-5 Years Greater Than Cross-Maturity Total Commodity swaps, options and forwards $ 6,604 $ 2,108 $ — $ — $ 8,712 Equity options and forwards 19,834 522,218 143,586 (20,365) 665,273 Credit default swaps 20 3,530 — — 3,550 Total return swaps 152,604 382,556 1,641 (4,147) 532,654 Foreign currency forwards, swaps and options 114,279 8,811 — (5,524) 117,566 Fixed income forwards 5,359 — — — 5,359 Interest rate swaps, options and forwards 140,177 56,586 114,364 (29,567) 281,560 Total $ 438,877 $ 975,809 $ 259,591 $ (59,603) 1,614,674 Cross product counterparty netting (24,263) Total OTC derivative liabilities included in Financial instruments sold, not yet purchased, at fair value $ 1,590,411 (1) At February 28, 2021, we held net exchange-traded derivative liabilities, other derivative liabilities and other credit agreements with a fair value of $91.9 million, which are not included in this table. (2) OTC derivative liabilities in the table above are gross of collateral pledged. OTC derivative liabilities are recorded net of collateral pledged in the Consolidated Statements of Financial Condition. At February 28, 2021, cash collateral pledged was $588.7 million. (3) Derivative fair values include counterparty netting within product category.
Counterparty Credit Quality with Respect to Fair Value of OTC Derivatives Assets	At February 28, 2021, the counterparty credit quality with respect to the fair value of our OTC derivative assets was as follows (in thousands): Counterparty credit quality (1): A- or higher $ 162,505 BBB- to BBB+ 38,774 BB+ or lower 201,073 Unrated 262,379 Total $ 664,731 (1) We utilize internal credit ratings determined by the Jefferies Group's Risk Management department. Credit ratings determined by Jefferies Group Risk Management use methodologies that produce ratings generally consistent with those produced by external rating agencies.
Credit Related Derivative Contracts	The external credit ratings of the underlyings or referenced assets for our written credit related derivative contracts are as follows (in millions): External Credit Rating Investment Grade Non-investment grade Unrated Total Notional February 28, 2021 Credit protection sold: Index credit default swaps $ 921.0 $ 459.0 $ — $ 1,380.0 Single name credit default swaps 87.2 6.2 0.2 93.6 November 30, 2020 Credit protection sold: Index credit default swaps $ 62.0 $ 262.8 $ — $ 324.8 Single name credit default swaps — 6.2 0.2 6.4
Derivative Instruments with Contingent Features	The following table presents the aggregate fair value of all derivative instruments with such credit-risk-related contingent features that are in a liability position, the collateral amounts posted or received in the normal course of business and the potential collateral we would have been required to return and/or post additionally to our counterparties if the credit-risk-related contingent features underlying these agreements were triggered (in millions). February 28, November 30, 2020 Derivative instrument liabilities with credit-risk-related contingent features $ 464.6 $ 284.6 Collateral posted (33.0) (129.8) Collateral received 244.1 141.4 Return of and additional collateral required in the event of a credit rating downgrade below investment grade (1) 675.7 296.2 (1) These potential outflows include initial margin received from counterparties at the execution of the derivative contract. The initial margin will be returned if counterparties elect to terminate the contract after a downgrade.

Collateralized Transactions (Ta

Collateralized Transactions (Tables)	3 Months Ended
	Feb. 28, 2021
Collateralized Transactions [Abstract]
Schedule of Collateralized Financing Transactions	The following tables set forth the carrying value of securities lending arrangements, repurchase agreements and obligation to return securities received as collateral, at fair value, by class of collateral pledged and remaining contractual maturity (in thousands): Collateral Pledged Securities Lending Arrangements Repurchase Agreements Obligation to Return Securities Received as Collateral, at Fair Value Total February 28, 2021 Corporate equity securities $ 2,067,474 $ 245,823 $ — $ 2,313,297 Corporate debt securities 372,966 2,113,427 — 2,486,393 Mortgage-backed and asset-backed securities — 1,378,273 — 1,378,273 U.S. government and federal agency securities 20,353 9,417,370 — 9,437,723 Municipal securities — 138,344 — 138,344 Sovereign obligations 58,284 2,584,304 — 2,642,588 Loans and other receivables — 981,487 — 981,487 Total $ 2,519,077 $ 16,859,028 $ — $ 19,378,105 November 30, 2020 Corporate equity securities $ 1,371,978 $ 157,912 $ 7,517 $ 1,537,407 Corporate debt securities 369,218 1,869,844 — 2,239,062 Mortgage-backed and asset-backed securities — 1,547,140 — 1,547,140 U.S. government and federal agency securities 14,789 7,149,992 — 7,164,781 Municipal securities — 278,470 — 278,470 Sovereign obligations 54,763 2,763,032 — 2,817,795 Loans and other receivables — 1,392,883 — 1,392,883 Total $ 1,810,748 $ 15,159,273 $ 7,517 $ 16,977,538 Contractual Maturity Overnight and Continuous Up to 30 Days 31 to 90 Days Greater than 90 Days Total February 28, 2021 Securities lending arrangements $ 1,080,237 $ — $ 482,281 $ 956,559 $ 2,519,077 Repurchase agreements 7,711,109 3,146,550 3,313,696 2,687,673 16,859,028 Total $ 8,791,346 $ 3,146,550 $ 3,795,977 $ 3,644,232 $ 19,378,105 November 30, 2020 Securities lending arrangements $ 636,256 $ 59,735 $ 459,455 $ 655,302 $ 1,810,748 Repurchase agreements 5,510,476 1,747,526 5,019,885 2,881,386 15,159,273 Obligation to return securities received as collateral, at fair value 7,517 — — — 7,517 Total $ 6,154,249 $ 1,807,261 $ 5,479,340 $ 3,536,688 $ 16,977,538
Summary of Offsetting Assets	The following table provides information regarding repurchase agreements, securities borrowing and lending arrangements and securities received as collateral, at fair value, and obligation to return securities received as collateral, at fair value, that are recognized in the Consolidated Statements of Financial Condition and (1) the extent to which, under enforceable master netting arrangements, such balances are presented net in the Consolidated Statements of Financial Condition as appropriate under GAAP and (2) the extent to which other rights of setoff associated with these arrangements exist and could have an effect on our consolidated financial position. (In thousands) Gross Netting in Consolidated Statements of Financial Condition Net Amounts in Consolidated Statements of Financial Condition Additional Amounts Available for Setoff (1) Available Collateral (2) Net Amount (3) Assets at February 28, 2021 Securities borrowing arrangements $ 7,150,657 $ — $ 7,150,657 $ (567,061) $ (1,984,216) $ 4,599,380 Reverse repurchase agreements 16,331,676 (9,651,392) 6,680,284 (283,889) (6,328,407) 67,988 Liabilities at February 28, 2021 Securities lending arrangements $ 2,519,077 $ — $ 2,519,077 $ (567,061) $ (1,908,973) $ 43,043 Repurchase agreements 16,859,028 (9,651,392) 7,207,636 (283,889) (6,408,994) 514,753 Assets at November 30, 2020 Securities borrowing arrangements $ 6,934,762 $ — $ 6,934,762 $ (395,342) $ (1,706,046) $ 4,833,374 Reverse repurchase agreements 11,939,773 (6,843,004) 5,096,769 (412,327) (4,578,560) 105,882 Securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 Liabilities at November 30, 2020 Securities lending arrangements $ 1,810,748 $ — $ 1,810,748 $ (395,342) $ (1,397,550) $ 17,856 Repurchase agreements 15,159,273 (6,843,004) 8,316,269 (412,327) (7,122,422) 781,520 Obligation to return securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 (1) Under master netting agreements with our counterparties, we have the legal right of offset with a counterparty, which incorporates all of the counterparty's outstanding rights and obligations under the arrangement. These balances reflect additional credit risk mitigation that is available by a counterparty in the event of a counterparty's default, but which are not netted in the Consolidated Statements of Financial Condition because other netting provisions of GAAP are not met. (2) Includes securities received or paid under collateral arrangements with counterparties that could be liquidated in the event of a counterparty default and thus offset against a counterparty's rights and obligations under the respective repurchase agreements or securities borrowing or lending arrangements. (3) At February 28, 2021, amounts include $4,511.4 million of securities borrowing arrangements, for which we have received securities collateral of $4,383.8 million, and $505.0 million of repurchase agreements, for which we have pledged securities collateral of $520.2 million, which are subject to master netting agreements, but we have not determined the agreements to be legally enforceable. At November 30, 2020, amounts include $4,757.8 million of securities borrowing arrangements, for which we have received securities collateral of $4,617.0 million, and $720.0 million of repurchase
Summary of Offsetting Liabilities	The following table provides information regarding repurchase agreements, securities borrowing and lending arrangements and securities received as collateral, at fair value, and obligation to return securities received as collateral, at fair value, that are recognized in the Consolidated Statements of Financial Condition and (1) the extent to which, under enforceable master netting arrangements, such balances are presented net in the Consolidated Statements of Financial Condition as appropriate under GAAP and (2) the extent to which other rights of setoff associated with these arrangements exist and could have an effect on our consolidated financial position. (In thousands) Gross Netting in Consolidated Statements of Financial Condition Net Amounts in Consolidated Statements of Financial Condition Additional Amounts Available for Setoff (1) Available Collateral (2) Net Amount (3) Assets at February 28, 2021 Securities borrowing arrangements $ 7,150,657 $ — $ 7,150,657 $ (567,061) $ (1,984,216) $ 4,599,380 Reverse repurchase agreements 16,331,676 (9,651,392) 6,680,284 (283,889) (6,328,407) 67,988 Liabilities at February 28, 2021 Securities lending arrangements $ 2,519,077 $ — $ 2,519,077 $ (567,061) $ (1,908,973) $ 43,043 Repurchase agreements 16,859,028 (9,651,392) 7,207,636 (283,889) (6,408,994) 514,753 Assets at November 30, 2020 Securities borrowing arrangements $ 6,934,762 $ — $ 6,934,762 $ (395,342) $ (1,706,046) $ 4,833,374 Reverse repurchase agreements 11,939,773 (6,843,004) 5,096,769 (412,327) (4,578,560) 105,882 Securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 Liabilities at November 30, 2020 Securities lending arrangements $ 1,810,748 $ — $ 1,810,748 $ (395,342) $ (1,397,550) $ 17,856 Repurchase agreements 15,159,273 (6,843,004) 8,316,269 (412,327) (7,122,422) 781,520 Obligation to return securities received as collateral, at fair value 7,517 — 7,517 — — 7,517 (1) Under master netting agreements with our counterparties, we have the legal right of offset with a counterparty, which incorporates all of the counterparty's outstanding rights and obligations under the arrangement. These balances reflect additional credit risk mitigation that is available by a counterparty in the event of a counterparty's default, but which are not netted in the Consolidated Statements of Financial Condition because other netting provisions of GAAP are not met. (2) Includes securities received or paid under collateral arrangements with counterparties that could be liquidated in the event of a counterparty default and thus offset against a counterparty's rights and obligations under the respective repurchase agreements or securities borrowing or lending arrangements. (3) At February 28, 2021, amounts include $4,511.4 million of securities borrowing arrangements, for which we have received securities collateral of $4,383.8 million, and $505.0 million of repurchase agreements, for which we have pledged securities collateral of $520.2 million, which are subject to master netting agreements, but we have not determined the agreements to be legally enforceable. At November 30, 2020, amounts include $4,757.8 million of securities borrowing arrangements, for which we have received securities collateral of $4,617.0 million, and $720.0 million of repurchase

Securitization Activities (Tabl

Securitization Activities (Tables)	3 Months Ended
	Feb. 28, 2021
Transfers and Servicing [Abstract]
Activity Related to Securitizations Accounted for as Sales	The following table presents activity related to our securitizations that were accounted for as sales in which we had continuing involvement (in millions): For the Three Months Ended February 28, 2021 February 29, 2020 Transferred assets $ 3,583.5 $ 2,334.6 Proceeds on new securitizations 3,583.1 2,334.7 Cash flows received on retained interests 6.3 7.0
Summary of Retained Interests in SPEs	The following table summarizes our retained interests in SPEs where we transferred assets and have continuing involvement and received sale accounting treatment (in millions): February 28, 2021 November 30, 2020 Securitization Type Total Retained Total Retained U.S. government agency residential mortgage-backed securities $ 505.5 $ 6.8 $ 562.5 $ 7.8 U.S. government agency commercial mortgage-backed securities 2,051.0 102.3 2,461.2 205.2 CLOs 5,712.5 70.2 3,345.5 39.5 Consumer and other loans 1,428.9 77.8 1,290.6 56.6

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Feb. 28, 2021
Variable Interest Entity, Measure of Activity [Abstract]
Schedule of VIEs	The following table presents information about our consolidated VIEs (in millions). The assets and liabilities in the table below are presented prior to consolidation and thus a portion of these assets and liabilities are eliminated in consolidation. February 28, 2021 November 30, 2020 Secured Funding Vehicles Other Secured Funding Vehicles Other Cash (1) $ — $ 1.2 $ — $ 1.2 Financial instruments owned, at fair value — 12.6 — 5.2 Securities purchased under agreements to resell (2) 3,934.3 — 2,908.9 — Receivables 636.5 31.2 510.6 12.9 Other (3) 66.5 0.2 46.4 0.1 Total assets $ 4,637.3 $ 45.2 $ 3,465.9 $ 19.4 Financial instruments sold, not yet purchased, at fair $ — $ 9.4 $ — $ 2.5 Other secured financings (4) 4,637.4 — 3,425.0 — Other liabilities (5) 3.7 0.5 1.8 0.4 Total liabilities $ 4,641.1 $ 9.9 $ 3,426.8 $ 2.9 (1) Approximately $1.2 million and $0.7 million of the cash amounts at February 28, 2021 and November 30, 2020, respectively, represent cash on deposit with related consolidated entities and are eliminated in consolidation. (2) Securities purchased under agreements to resell primarily represent amounts due under collateralized transactions on related consolidated entities, which are eliminated in consolidation. (3) Approximately $9.7 million of the other assets amount at November 30, 2020 represents intercompany receivables with related consolidated entities, which are eliminated in consolidation. (4) Approximately $131.2 million and $138.2 million of the other secured financings amounts at February 28, 2021 and November 30, 2020, respectively, are with related consolidated entities, which are eliminated in consolidation. (5) Approximately $2.1 million and $0.3 million of the other liabilities amounts at February 28, 2021 and November 30, 2020, respectively, represent intercompany payables with related consolidated entities, which are eliminated in consolidation. The following table presents information about our variable interests in nonconsolidated VIEs (in millions): Carrying Amount Maximum VIE Assets Assets Liabilities February 28, 2021 CLOs $ 163.4 $ 5.4 $ 1,343.5 $ 9,595.0 Consumer loan and other asset-backed vehicles 266.9 — 363.3 2,580.5 Related party private equity vehicles 18.7 — 29.5 52.3 Other investment vehicles 909.7 — 1,050.0 14,167.7 Total $ 1,358.7 $ 5.4 $ 2,786.3 $ 26,395.5 November 30, 2020 CLOs $ 60.7 $ 0.2 $ 642.7 $ 6,849.1 Consumer loan and other asset-backed vehicles 251.6 — 377.2 2,462.7 Related party private equity vehicles 19.0 — 30.0 53.0 Other investment vehicles 899.9 — 1,042.9 15,735.5 Total $ 1,231.2 $ 0.2 $ 2,092.8 $ 25,100.3

Loans to and Investments in A_2

Loans to and Investments in Associated Companies (Tables)	3 Months Ended
	Feb. 28, 2021
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Loans to and Investments in Associated Companies	A summary of Loans to and investments in associated companies accounted for under the equity method of accounting during the three months ended February 28, 2021 and February 29, 2020 is as follows (in thousands): Loans to and investments in associated companies as of beginning of period Income (losses) related to associated companies Other income (losses) related to associated companies (1) Contributions to (distributions from) associated companies, net Other Loans to and investments in associated companies as of end of period 2021 Jefferies Finance $ 693,201 $ — $ 27,585 $ (40,542) $ — $ 680,244 Berkadia 301,152 — 30,018 (316) (61) 330,793 FXCM (2) 73,920 (5,462) — — 327 68,785 Linkem (3) 198,991 (9,107) — (8,783) — 181,101 Real estate associated companies 168,678 6,051 — (10,954) — 163,775 Other (3) 250,621 (2,050) 30,303 (14,524) — 264,350 Total $ 1,686,563 $ (10,568) $ 87,906 $ (75,119) $ 266 $ 1,689,048 2020 Jefferies Finance $ 673,867 $ — $ 5,119 $ 4,871 $ — $ 683,857 Berkadia 268,949 — 21,894 (36,165) 305 254,983 FXCM (2) 70,223 (1,638) — — (144) 68,441 Linkem 194,847 (13,185) — (359) (113) 181,190 Real estate associated companies (4) 255,309 (53,014) — (29,415) — 172,880 Other 189,762 (18) 1,746 551 9,236 201,277 Total $ 1,652,957 $ (67,855) $ 28,759 $ (60,517) $ 9,284 $ 1,562,628 (1) Primarily related to Jefferies Group and classified in Other revenues. (2) As further described in Note 3, our investment in FXCM includes both our equity method investment in FXCM and our term loan with FXCM. Our equity method investment is included in Loans to and investments in associated companies and our term loan is included in Financial instruments owned, at fair value in the Consolidated Statements of Financial Condition. (3) Loans to and investments in associated companies at February 28, 2021 and November 30, 2020 include loans and debt securities aggregating $100.0 million and $104.1 million, respectively, related to Linkem and Other. (4) Income (loss) related to Real estate associated companies for the three months ended February 29, 2020 includes a non-cash charge of $55.6 million to fully write-off the value of HomeFed's RedSky JZ Fulton Mall joint venture investment related to a softening of the Brooklyn real estate market. Income (losses) related to associated companies includes the following (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 FXCM $ (5,462) $ (1,638) Linkem (9,107) (13,185) Real estate associated companies 6,051 (53,014) Other (2,050) (18) Total $ (10,568) $ (67,855) Other income (losses) related to associated companies (primarily related to Jefferies Group and classified in Other revenues) includes the following (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Jefferies Finance $ 27,585 $ 5,119 Berkadia 30,018 21,894 Other 30,303 1,746 Total $ 87,906 $ 28,759
Schedule of Equity Method Investments	The following summarizes activity related to our other transactions with Jefferies Finance (in millions): For the Three Months Ended February 28, 2021 February 29, 2020 Origination and syndication fee revenues (1) $ 70.3 $ 37.7 Origination fee expenses (1) 12.3 5.6 CLO placement fee revenues (2) 2.4 0.4 Underwriting fees (3) 0.5 0.3 Service fees (4) 31.5 25.2 (1) Jefferies Group engages in the origination and syndication of loans underwritten by Jefferies Finance. In connection with such services, Jefferies Group earned fees, which are recognized in Investment banking revenues in the Consolidated Statements of Operations. In addition, Jefferies Group paid fees to Jefferies Finance in respect of certain loans originated by Jefferies Finance, which are recognized in Selling, general and other expenses in the Consolidated Statements of Operations. (2) Jefferies Group acts as a placement agent for CLOs managed by Jefferies Finance, for which Jefferies Group recognized fees, which are included in Investment banking revenues in the Consolidated Statements of Operations. At February 28, 2021 and November 30, 2020, Jefferies Group held securities issued by CLOs managed by Jefferies Finance, which are included in Financial instruments owned, at fair value. (3) Jefferies Group acted as underwriter in connection with term loans issued by Jefferies Finance. (4) Under a service agreement, Jefferies Group charges Jefferies Finance for services provided.

Intangible Assets, Net and Go_2

Intangible Assets, Net and Goodwill (Tables)	3 Months Ended
	Feb. 28, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets, Net and Goodwill	A summary of Intangible assets, net and goodwill is as follows (in thousands): February 28, November 30, 2020 Indefinite-lived intangibles: Exchange and clearing organization membership interests and registrations $ 7,923 $ 7,884 Amortizable intangibles: Customer and other relationships, net of accumulated amortization of $122,163 and $119,694 49,344 51,285 Trademarks and tradenames, net of accumulated amortization of $29,680 and $28,585 99,924 100,255 Other, net of accumulated amortization of $9,574 and $8,953 7,108 7,729 Total intangible assets, net 164,299 167,153 Goodwill: Investment Banking and Capital Markets (1) 1,566,853 1,563,144 Asset Management 143,000 143,000 Real estate 36,711 36,711 Other operations 3,459 3,459 Total goodwill 1,750,023 1,746,314 Total intangible assets, net and goodwill $ 1,914,322 $ 1,913,467
Schedule of Estimated Aggregate Future Amortization Expense	The estimated aggregate future amortization expense for the intangible assets for each of the next five years is as follows (in thousands): Remainder of current year $ 10,789 2022 11,134 2023 9,900 2024 9,143 2025 8,632

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	3 Months Ended
	Feb. 28, 2021
Debt Disclosure [Abstract]
Schedule of Short-Term Borrowings	Our short-term borrowings, which mature in one year or less, are as follows (in thousands): February 28, November 30, 2020 Bank loans (1) $ 876,141 $ 752,848 Floating rate puttable notes (1) 6,800 6,800 Equity-linked notes (2) — 5,067 Total short-term borrowings $ 882,941 $ 764,715 (1) These short-term borrowings are recorded at cost in the Consolidated Statements of Financial Condition, which is a reasonable approximation of their fair values due to their liquid and short-term nature. (2) See Note 3 for further information on these notes.
Schedule of Line of Credit Facilities	Our facilities included within bank loans are as follows (in thousands): February 28, November 30, 2020 Bank of New York Mellon Master Loan Agreement (1) $ 300,000 $ 300,000 JPMorgan Chase Bank, N.A. Credit Facility (2) 274,000 246,000 Royal Bank of Canada Credit Facility (3) 200,000 200,000 Bank of New York Mellon Credit Facility (4) 100,000 — Total $ 874,000 $ 746,000 (1) Interest is generally based at spreads over the Federal Funds Rate as defined in this master loan agreement. (2) Interest is based on an annual alternative base rate or an adjusted London Interbank Offered Rate ("LIBOR"), as defined in this credit facility agreement. (3) Interest is based on a rate per annum equal to LIBOR plus an applicable margin of 2.05%. (4) Interest is based on a rate per annum equal to the Federal Funds Rate plus 2%.

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Feb. 28, 2021
Debt Disclosure [Abstract]
Schedule of Indebtedness	The principal amount (net of unamortized discounts, premiums and debt issuance costs), stated interest rate and maturity date of outstanding debt are as follows (dollars in thousands): February 28, November 30, 2020 Parent Company Debt: Senior Notes: 5.50% Senior Notes due October 18, 2023, $750,000 principal $ 746,215 $ 745,883 6.625% Senior Notes due October 23, 2043, $250,000 principal 246,843 246,828 Total long-term debt – Parent Company 993,058 992,711 Subsidiary Debt (non-recourse to Parent Company): Jefferies Group: 2.25% Euro Medium Term Notes, due July 13, 2022, $0 and $4,779 principal — 4,638 5.125% Senior Notes, due January 20, 2023, $750,000 principal 758,792 759,901 1.00% Euro Medium Term Notes, due July 19, 2024, $603,950 and $597,350 principal 602,401 595,700 4.85% Senior Notes, due January 15, 2027, $750,000 principal (1) 790,942 809,039 6.45% Senior Debentures, due June 8, 2027, $350,000 principal 368,445 369,057 4.15% Senior Notes, due January 23, 2030, $1,000,000 principal 989,807 989,574 2.75% Senior Notes, due October 15, 2032, $500,000 principal (1) 456,828 485,134 6.25% Senior Debentures, due January 15, 2036, $500,000 principal 510,724 510,834 6.50% Senior Notes, due January 20, 2043, $400,000 principal 419,719 419,826 Structured Notes (2) 1,784,157 1,712,245 Jefferies Group Revolving Credit Facility 189,893 189,732 Jefferies Group Secured Bank Loan 50,000 50,000 HomeFed EB-5 Program debt 191,486 191,294 HomeFed construction loan 45,949 45,471 Foursight Capital Credit Facilities — 129,000 Vitesse Energy Finance Revolving Credit Facility 90,949 97,883 Total long-term debt – subsidiaries 7,250,092 7,359,328 Long-term debt $ 8,243,150 $ 8,352,039 (1) The carrying value of these senior notes include a net gain of $46.8 million and a net loss of $24.9 million during the three months ended February 28, 2021 and February 29, 2020, respectively, associated with interest rate swaps based on designation as fair value hedges. See Note 4 for further information. (2) These structured notes contain various interest rate payment terms and are accounted for at fair value, with changes in fair value resulting from a change in the instrument specific credit risk presented in Accumulated other comprehensive income (loss) and changes in fair value resulting from non-credit components recognized in Principal transactions revenues. Gains and losses in the fair value of structured notes resulting from non-credit components are recognized within Other operating activities in the Consolidated Statements of Cash Flow.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Feb. 28, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Summary of Accumulated Other Comprehensive Income (Loss), Net of Taxes	A summary of accumulated other comprehensive income (loss), net of taxes is as follows (in thousands): February 28, November 30, 2020 Net unrealized gains on available for sale securities $ 453 $ 513 Net unrealized foreign exchange losses (145,635) (156,718) Net unrealized losses on instrument specific credit risk (140,587) (71,151) Net minimum pension liability (60,775) (61,561) $ (346,544) $ (288,917)
Schedule of Accumulated Other Comprehensive Income (Loss) Reclassification	Amounts reclassified out of accumulated other comprehensive income (loss) to net income are as follows (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Affected Line Item in the For the Three Months Ended February 28, February 29, Net unrealized gains (losses) on instrument specific credit risk, net of income tax provision (benefit) of $71 and $86 $ 222 $ 252 Principal transactions revenues Amortization of defined benefit pension plan actuarial losses, net of income tax benefit of $(261) and $(224) (786) (639) Selling, general and other expenses, which includes pension expense Total reclassifications for the period, net of tax $ (564) $ (387)

Revenues from Contracts with _2

Revenues from Contracts with Customers (Tables)	3 Months Ended
	Feb. 28, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents our total revenues separated for our revenues from contracts with customers and our other sources of revenues (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Revenues from contracts with customers: Commissions and other fees $ 236,769 $ 179,430 Investment banking 1,003,612 592,002 Manufacturing revenues 137,847 77,607 Other 54,415 63,777 Total revenues from contracts with customers 1,432,643 912,816 Other sources of revenue: Principal transactions 919,901 404,864 Interest income 240,497 326,366 Other 110,547 48,218 Total revenues from other sources 1,270,945 779,448 Total revenues $ 2,703,588 $ 1,692,264 The following presents our revenues from contracts with customers disaggregated by major business activity and primary geographic regions (in thousands): Reportable Segments Investment Banking and Capital Markets Asset Management Merchant Banking Corporate Consolidation Adjustments Total Three months ended February 28, 2021 Major Business Activity: Investment Banking - Advisory $ 311,439 $ — $ — $ — $ — $ 311,439 Investment Banking - Underwriting 692,223 — — — (50) 692,173 Equities (1) 233,539 — — — (169) 233,370 Fixed Income (1) 3,399 — — — — 3,399 Asset Management — 7,426 — — — 7,426 Manufacturing revenues — — 137,847 — — 137,847 Oil and gas revenues — — 32,009 — — 32,009 Other revenues — — 14,980 — — 14,980 Total revenues from contracts with customers $ 1,240,600 $ 7,426 $ 184,836 $ — $ (219) $ 1,432,643 Primary Geographic Region: Americas $ 1,026,916 $ 7,097 $ 184,338 $ — $ (219) $ 1,218,132 Europe 163,737 329 369 — — 164,435 Asia Pacific 49,947 — 129 — — 50,076 Total revenues from contracts with customers $ 1,240,600 $ 7,426 $ 184,836 $ — $ (219) $ 1,432,643 Three months ended February 29, 2020 Major Business Activity: Investment Banking - Advisory $ 343,158 $ — $ — $ — $ — $ 343,158 Investment Banking - Underwriting 248,844 — — — — 248,844 Equities (1) 176,249 — — — (105) 176,144 Fixed Income (1) 3,286 — — — — 3,286 Asset Management — 6,091 — — — 6,091 Manufacturing revenues — — 77,607 — — 77,607 Oil and gas revenues — — 42,214 — — 42,214 Other revenues — — 15,472 — — 15,472 Total revenues from contracts with customers $ 771,537 $ 6,091 $ 135,293 $ — $ (105) $ 912,816 Primary Geographic Region: Americas $ 649,069 $ 2,568 $ 134,779 $ — $ (105) $ 786,311 Europe 79,438 3,523 360 — — 83,321 Asia Pacific 43,030 — 154 — — 43,184 Total revenues from contracts with customers $ 771,537 $ 6,091 $ 135,293 $ — $ (105) $ 912,816 (1) Revenues from contracts with customers associated with the equities and fixed income businesses primarily represent commissions and other fee revenue.

Common Share and Earnings Per_2

Common Share and Earnings Per Common Share (Tables)	3 Months Ended
	Feb. 28, 2021
Earnings Per Share [Abstract]
Earnings Per Share Computation	The numerators and denominators used to calculate basic and diluted earnings per share are as follows (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Numerator for earnings per share: Net income attributable to Jefferies Financial Group Inc. common shareholders $ 582,435 $ 113,010 Allocation of earnings to participating securities (1) (3,216) (695) Net income attributable to Jefferies Financial Group Inc. common shareholders for basic earnings per share 579,219 112,315 Adjustment to allocation of earnings to participating securities related to diluted shares (1) 42 (3) Mandatorily redeemable convertible preferred share dividends 1,626 1,422 Net income attributable to Jefferies Financial Group Inc. common shareholders for diluted earnings per share $ 580,887 $ 113,734 Denominator for earnings per share: Weighted average common shares outstanding 249,352 286,682 Weighted average shares of restricted stock outstanding with future service required (1,461) (1,892) Weighted average RSUs outstanding with no future service required 18,495 17,616 Denominator for basic earnings per share – weighted average shares 266,386 302,406 Stock options 208 10 Senior executive compensation plan awards 1,846 1,423 Mandatorily redeemable convertible preferred shares 4,441 4,441 Denominator for diluted earnings per share 272,881 308,280 (1) Represents dividends declared during the period on participating securities plus an allocation of undistributed earnings to participating securities. Net losses are not allocated to participating securities. Participating securities represent restricted stock and RSUs for which requisite service has not yet been rendered and amounted to weighted average shares of 1,482,000 and 1,902,000 for the three months ended February 28, 2021 and February 29, 2020, respectively. Dividends declared on participating securities were not material during the three months ended February 28, 2021 and February 29, 2020. Undistributed earnings are allocated to participating securities based upon their right to share in earnings if all earnings for the period had been distributed.

Commitments, Contingencies an_2

Commitments, Contingencies and Guarantees (Tables)	3 Months Ended
	Feb. 28, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitments	The following table summarizes commitments associated with certain business activities at February 28, 2021 (in millions): Expected Maturity Date 2021 2022 2023 2025 2027 Maximum Payout Equity commitments (1) $ 316.2 $ 151.0 $ 25.4 $ 10.9 $ 23.5 $ 527.0 Loan commitments (1) 57.5 260.0 25.0 2.0 — 344.5 Underwriting commitments 224.0 — — — — 224.0 Forward starting reverse repos (2) 5,703.8 193.7 4.2 — — 5,901.7 Forward starting repos (2) 3,627.2 — 4.2 — — 3,631.4 Other unfunded commitments (1) 135.3 25.0 136.1 — — 296.4 $ 10,064.0 $ 629.7 $ 194.9 $ 12.9 $ 23.5 $ 10,925.0 (1) Equity commitments, loan commitments and other unfunded commitments are generally presented by contractual maturity date. The amounts, however, are mostly available on demand. (2) At February 28, 2021, $5,894.4 million within forward starting securities purchased under agreements to resell and $3,631.4 million within forward starting securities sold under agreements to repurchase settled within three
Schedule of Notional Amounts Associated with Derivative Contracts Meeting Definition of Guarantee	The following table summarizes the notional amounts associated with our derivative contracts meeting the definition of a guarantee under GAAP at February 28, 2021 (in millions): Expected Maturity Date Guarantee Type 2021 2022 2023 2025 2027 Notional/ Derivative contracts – non-credit related $ 11,232.2 $ 2,940.1 $ 8,807.2 $ 394.1 $ 12.1 $ 23,385.7 Written derivative contracts – credit related — — 6.4 87.2 — 93.6 Total derivative contracts $ 11,232.2 $ 2,940.1 $ 8,813.6 $ 481.3 $ 12.1 $ 23,479.3

Other Fair Value Information (T

Other Fair Value Information (Tables)	3 Months Ended
	Feb. 28, 2021
Fair Value Disclosures [Abstract]
Methods and Assumptions Used to Estimate the Fair Values	The carrying amounts and estimated fair values of our principal financial instruments that are not recognized at fair value on a recurring basis are as follows (in thousands): February 28, 2021 November 30, 2020 Carrying Fair Carrying Fair Receivables: Notes and loans receivable (1) $ 748,642 $ 771,136 $ 727,492 $ 744,424 Financial Liabilities: Short-term borrowings (2) $ 882,941 $ 882,941 $ 759,648 $ 759,648 Long-term debt (3) 6,458,993 7,282,248 6,639,794 7,495,642 (1) Notes and loans receivable: The fair values are estimated principally based on a discounted future cash flows model using market interest rates for similar instruments. If measured at fair value in the financial statements, these financial instruments would be classified as Level 3 in the fair value hierarchy. (2) Short-term borrowings: The fair values of short-term borrowings carried at cost are estimated to be the carrying amount due to their short maturities. If measured at fair value in the financial statements, these financial instruments would be classified as Level 3 in the fair value hierarchy. (3) Long-term debt: The fair values are estimated using quoted prices, pricing information obtained from external data providers and, for certain variable rate debt, is estimated to be the carrying amount. If measured at fair value in the financial statements, these financial instruments would be classified as Level 2 and Level 3 in the fair value hierarchy.

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Feb. 28, 2021
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Certain information concerning our segments is presented in the following table (in thousands): For the Three Months Ended February 28, 2021 February 29, 2020 Net revenues: Reportable Segments: Investment Banking and Capital Markets $ 1,959,509 $ 1,148,829 Asset Management 226,734 20,329 Merchant Banking 297,503 204,559 Corporate 590 9,792 Total net revenues related to reportable segments 2,484,336 1,383,509 Consolidation adjustments 2,606 2,819 Total consolidated revenues $ 2,486,942 $ 1,386,328 Income (loss) before income taxes: Reportable Segments: Investment Banking and Capital Markets $ 543,283 $ 249,957 Asset Management 181,465 (20,929) Merchant Banking 107,617 (53,623) Corporate (20,477) (7,754) Income before income taxes related to reportable segments 811,888 167,651 Parent Company interest (13,902) (12,781) Consolidation adjustments 2,799 2,924 Total consolidated income before income taxes $ 800,785 $ 157,794 Depreciation and amortization expenses: Reportable Segments: Investment Banking and Capital Markets $ 20,684 $ 19,116 Asset Management 479 625 Merchant Banking 16,740 18,841 Corporate 864 888 Total consolidated depreciation and amortization expenses $ 38,767 $ 39,470 February 28, November 30, 2020 Identifiable Assets Employed: Reportable Segments: Investment Banking and Capital Markets $ 49,021,457 $ 44,835,126 Asset Management 2,713,231 3,231,059 Merchant Banking 3,276,351 3,173,064 Corporate 2,399,678 2,178,699 Identifiable assets employed related to reportable segments 57,410,717 53,417,948 Consolidation adjustments (541,798) (299,596) Total consolidated assets $ 56,868,919 $ 53,118,352

Nature of Operations (Details)

Nature of Operations (Details) $ in Millions	3 Months Ended
	Feb. 28, 2021USD ($)segment
Vitesse Energy, LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage	97.00%
JETX Energy
Schedule of Equity Method Investments [Line Items]
Ownership percentage	98.00%
HomeFed
Schedule of Equity Method Investments [Line Items]
Ownership percentage	100.00%
Idaho Timber
Schedule of Equity Method Investments [Line Items]
Ownership percentage	100.00%
Linkem
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	42.00%
Ownership percentage upon conversion of preferred shares and exercise of warrants	56.00%
Investment in FXCM
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Senior secured term loan receivable, principal outstanding	$ 71.6
Jefferies Group
Schedule of Equity Method Investments [Line Items]
Number of business segments | segment	2
FXCM
Schedule of Equity Method Investments [Line Items]
Senior secured term loan receivable, principal outstanding	$ 71.6

Basis of Presentation and Sig_4

Basis of Presentation and Significant Accounting Policies - Narrative (Details)	Feb. 28, 2021USD ($)	Dec. 01, 2020USD ($)	Nov. 30, 2020USD ($)	Feb. 28, 2021USD ($)extension	Feb. 29, 2020USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Receivables from brokers, dealers and clearing organizations	$ 4,750,700,000		$ 4,161,800,000	$ 4,750,700,000
Receivables from customers of securities operations	1,863,500,000		1,286,900,000	1,863,500,000
Payables to brokers, dealers and clearing organizations	4,098,800,000		3,325,800,000	4,098,800,000
Other investments with fair values not readily determinable	77,300,000		90,200,000	77,300,000
Impairment losses on investments				0	$ 20,000,000
Capitalized interest				1,900,000	2,300,000
Payables to customers of securities operations	4,090,000,000		4,249,700,000	4,090,000,000
Non-cash financing activities related to purchases of common shares for treasury					$ 18,500,000
Retained earnings	(7,041,460,000)		(6,531,836,000)	$ (7,041,460,000)
Foursight Capital
Loans and Leases Receivable Disclosure [Line Items]
Historical loss experience period				8 years
Supportable forecast period				2 years
Number of days prior to balance charge-off				120 days
Number of days automobile has been in possession prior to charge-off				45 days
Number of payments past due prior to repossession proceedings | extension				3
Cumulative effect of the adoption of accounting standards
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit losses		$ 26,500,000
Retained earnings		19,900,000
Cumulative effect of the adoption of accounting standards | Foursight Capital
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit losses		30,100,000
Foursight Capital | Automobile loan
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	$ 713,400,000		$ 694,200,000	$ 713,400,000
Foursight Capital | Automobile loan | Credit concentration risk | Loans receivable | Prime
Loans and Leases Receivable Disclosure [Line Items]
Concentration risk, percentage	14.00%		14.00%
Foursight Capital | Automobile loan | Credit concentration risk | Loans receivable | Near-prime
Loans and Leases Receivable Disclosure [Line Items]
Concentration risk, percentage	54.00%		54.00%
Foursight Capital | Automobile loan | Credit concentration risk | Loans receivable | Subprime
Loans and Leases Receivable Disclosure [Line Items]
Concentration risk, percentage	32.00%		32.00%
Foursight Capital | Securitized vehicles
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	$ 686,800,000		$ 532,400,000	$ 686,800,000
Jefferies Group | Cumulative effect of the adoption of accounting standards
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit losses		$ (3,600,000)

Basis of Presentation and Sig_5

Basis of Presentation and Significant Accounting Policies - Schedule of Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020	Nov. 30, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 76,392	$ 34,038	$ 53,926	$ 34,018
Provision for doubtful accounts	3,267	10,870
Charge-offs, net of recoveries	(7,320)	(10,850)
Ending balance	$ 76,392	$ 34,038
Cumulative effect of the adoption of accounting standards
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			$ 26,519	$ 0

Basis of Presentation and Sig_6

Basis of Presentation and Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Cash paid during the year for:
Interest	$ 242,027	$ 365,842
Income tax payments (refunds), net	$ 20,350	$ (10,697)

Fair Value Disclosures - Schedu

Fair Value Disclosures - Schedule of Assets and Liabilities Measured on Recurring Basis at Fair Value (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	$ 18,070,709	$ 17,159,193
Counterparty and cash collateral netting, assets	(2,604,607)	(1,556,136)
Loans to and investments in associated companies	39,397	48,788
Securities received as collateral, at fair value	0	7,517
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	12,370,254	10,017,600
Counterparty and cash collateral netting, liabilities	(2,997,103)	(1,798,659)
Short-term borrowings		5,067
Other secured financings	2,168	1,543
Long-term debt	1,784,157	1,712,245
Obligation to return securities received as collateral, at fair value	0	7,517
Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	7,031,299	7,279,781
Loans to and investments in associated companies	0	0
Securities received as collateral, at fair value		7,517
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	6,089,285	5,707,423
Short-term borrowings		0
Other secured financings	0	0
Long-term debt	0	0
Obligation to return securities received as collateral, at fair value		7,517
Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	12,946,831	10,784,987
Loans to and investments in associated companies	0	8,603
Securities received as collateral, at fair value		0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	8,912,204	6,039,896
Short-term borrowings		5,067
Other secured financings	0	0
Long-term debt	1,061,042	1,036,217
Obligation to return securities received as collateral, at fair value		0
Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	697,186	650,561
Loans to and investments in associated companies	39,397	40,185
Securities received as collateral, at fair value		0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	365,868	68,940
Short-term borrowings		0
Other secured financings	2,168	1,543
Long-term debt	723,115	676,028
Obligation to return securities received as collateral, at fair value		0
Fair value measured at NAV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Alternative investments	1,026,444	965,384
Corporate equity securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,033,286	2,609,950
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,130,512	2,059,921
Obligation to return securities received as collateral, at fair value	0	7,517
Corporate equity securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	2,873,165	2,475,887
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,124,994	2,046,441
Corporate equity securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	58,056	58,159
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,075	9,046
Corporate equity securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	102,065	75,904
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	4,443	4,434
Corporate debt securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,458,644	2,977,382
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,826,029	1,237,772
Obligation to return securities received as collateral, at fair value	0	0
Corporate debt securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Corporate debt securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,451,833	2,954,236
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,824,458	1,237,631
Corporate debt securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	6,811	23,146
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,571	141
Collateralized debt obligations and collateralized loan obligations
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	124,853	82,127
Collateralized debt obligations and collateralized loan obligations | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Collateralized debt obligations and collateralized loan obligations | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	91,654	64,155
Collateralized debt obligations and collateralized loan obligations | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	33,199	17,972
U.S. government and federal agency securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	2,559,363	2,931,678
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,618,198	2,609,660
U.S. government and federal agency securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	2,485,813	2,840,025
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,618,198	2,609,660
U.S. government and federal agency securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	73,550	91,653
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
U.S. government and federal agency securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Municipal securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	292,604	453,881
Liabilities:
Obligation to return securities received as collateral, at fair value	0	0
Municipal securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Municipal securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	292,604	453,881
Municipal securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Sovereign obligations
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	2,468,214	2,553,688
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,360,608	1,675,511
Obligation to return securities received as collateral, at fair value	0	0
Sovereign obligations | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	1,668,975	1,962,346
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,343,920	1,050,771
Sovereign obligations | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	799,239	591,342
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,016,688	624,740
Sovereign obligations | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Residential mortgage-backed securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	1,902,515	1,122,675
Liabilities:
Financial instruments sold, not yet purchased, at fair value:		477
Residential mortgage-backed securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:		0
Residential mortgage-backed securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	1,880,823	1,100,849
Liabilities:
Financial instruments sold, not yet purchased, at fair value:		477
Residential mortgage-backed securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	21,692	21,826
Liabilities:
Financial instruments sold, not yet purchased, at fair value:		0
Commercial mortgage-backed securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	39,684	738,294
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	35	35
Commercial mortgage-backed securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Commercial mortgage-backed securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	37,013	736,291
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Commercial mortgage-backed securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	2,671	2,003
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	35	35
Other asset-backed securities
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	124,550	183,606
Other asset-backed securities | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Other asset-backed securities | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	63,956	103,611
Other asset-backed securities | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	60,594	79,995
Loans and other receivables
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,249,001	2,745,382
Liabilities:
Obligation to return securities received as collateral, at fair value	0	0
Loans and other receivables | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Loans and other receivables | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,099,917	2,610,746
Loans and other receivables | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	149,084	134,636
Derivatives, assets
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	529,923	481,007
Derivatives, assets | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,346	1,523
Derivatives, assets | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	3,091,787	2,013,942
Derivatives, assets | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	39,397	21,678
Investments at fair value
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	225,940	220,068
Investments at fair value | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
Investments at fair value | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	6,399	6,122
Investments at fair value | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	219,541	213,946
FXCM term loan
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	62,132	59,455
FXCM term loan | Level 1
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
FXCM term loan | Level 2
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	0	0
FXCM term loan | Level 3
Assets:
Financial instruments owned, at fair value, excluding investments at fair value based on NAV	62,132	59,455
Loans
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,341,222	1,793,081
Loans | Level 1
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	0	0
Loans | Level 2
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,326,306	1,776,446
Loans | Level 3
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	14,916	16,635
Derivatives, liabilities
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	1,093,650	641,143
Derivatives, liabilities | Level 1
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	2,173	551
Derivatives, liabilities | Level 2
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	3,743,677	2,391,556
Derivatives, liabilities | Level 3
Liabilities:
Financial instruments sold, not yet purchased, at fair value:	$ 344,903	$ 47,695

Fair Value Disclosures - Invest

Fair Value Disclosures - Investments at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 28, 2021	Nov. 30, 2020
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 33,900	$ 17,408
Notice period redemption of investments prior written notice period		90 days
Equity Long/Short Hedge Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 0	$ 0
Percentage of investment at fair value, redemption restriction	94.00%	94.00%
Equity Long/Short Hedge Funds | 60 days prior written notice
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Percentage of investments redeemable	6.00%	6.00%
Notice period redemption of investments prior written notice period	60 days	60 days
Equity Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 12,150	$ 12,408
Equity Funds | Minimum
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Estimated period for the liquidation of the underlying assets	1 year	1 year
Equity Funds | Maximum
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Estimated period for the liquidation of the underlying assets	8 years	8 years
Commodity Fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 0	$ 0
Commodity Fund | 60 days prior written notice
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Notice period redemption of investments prior written notice period	60 days	60 days
Multi-asset Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 0	$ 0
Multi-asset Funds | 60 days prior written notice
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Percentage of investments redeemable	57.00%	57.00%
Notice period redemption of investments prior written notice period	60 days	60 days
Other Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 21,750	$ 5,000
Notice period redemption of investments prior written notice period	90 days
Other Funds | Minimum
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investments outstanding period	90 days	90 days
Other Funds | Maximum
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investments outstanding period	120 days	120 days
Fair value measured at NAV
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 1,026,444	$ 965,384
Fair value measured at NAV | Equity Long/Short Hedge Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	345,570	328,096
Fair value measured at NAV | Equity Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	32,478	33,221
Fair value measured at NAV | Commodity Fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	19,217	17,747
Fair value measured at NAV | Multi-asset Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	580,269	561,236
Fair value measured at NAV | Other Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 48,910	$ 25,084

Fair Value Disclosures - Inve_2

Fair Value Disclosures - Investment in FXCM (Details) - Investment in FXCM $ in Millions	Feb. 28, 2021USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior secured term loan receivable, principal outstanding	$ 71.6
Equity method investment, ownership percentage	50.00%

Fair Value Disclosures - Nonrec

Fair Value Disclosures - Nonrecurring Fair Value Measurements (Details) $ in Millions	3 Months Ended
	Feb. 29, 2020USD ($)	Feb. 28, 2021ft²sitetaxLot
JETX Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of oil and gas properties	$ 33
JETX Energy | Oil and gas properties
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of proven oil and gas properties	$ 9.6
JETX Energy | Discount Rate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input	0.100
HomeFed | RedSky JZ Fulton Mall
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of separate tax lots | taxLot		14
Number of premier development sites | site		2
Area of property (up to) | ft²		540,000
Equity method investment, other than temporary impairment	$ 55.6
HomeFed | RedSky JZ Fulton Mall | Development site
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investment, ownership percentage		49.00%

Fair Value Disclosures - Level

Fair Value Disclosures - Level 3 Rollforwards (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Assets:
Total gains (losses) (realized and unrealized)	$ 102,200	$ (42,800)
Liabilities:
Total gains/ losses (realized and unrealized)	72,100	(26,400)
Fair value, Liabilities, change in unrealized gains/(losses) included in other comprehensive income relating to instruments still held	40,900	(14,600)
Corporate equity securities
Assets:
Beginning Balance	75,904	58,426
Total gains (losses) (realized and unrealized)	2,339	(8,280)
Purchases	4,805	2,792
Sales	(4,647)	(1,934)
Settlements	0	0
Issuances	0	0
Net transfers into (out of) Level 3	23,664	52,679
Ending Balance	102,065	103,683
Changes in unrealized gains/losses included in earnings relating to instruments still held	1,165	(8,291)
Liabilities:
Beginning Balance	4,434	4,487
Total gains/ losses (realized and unrealized)	9	291
Purchases	0	(513)
Sales	0	0
Settlements	0	0
Issuances	0	0
Net transfers into (out of) Level 3	0	10
Ending Balance	4,443	4,275
Changes in unrealized gains/losses included in earnings relating to instruments still held	(22)	65
Corporate debt securities
Assets:
Beginning Balance	23,146	7,490
Total gains (losses) (realized and unrealized)	266	1,269
Purchases	130	1,478
Sales	(6)	(503)
Settlements	0	(601)
Issuances	0	0
Net transfers into (out of) Level 3	(16,725)	15,957
Ending Balance	6,811	25,090
Changes in unrealized gains/losses included in earnings relating to instruments still held	297	879
Liabilities:
Beginning Balance	141	340
Total gains/ losses (realized and unrealized)	1,430	(189)
Purchases	0	(13,832)
Sales	0	14,079
Settlements	0	369
Issuances	0	0
Net transfers into (out of) Level 3	0	0
Ending Balance	1,571	767
Changes in unrealized gains/losses included in earnings relating to instruments still held	(1,430)	(35)
CDOs and CLOs
Assets:
Beginning Balance	17,972	28,788
Total gains (losses) (realized and unrealized)	3,840	(1,940)
Purchases	11,427	17,594
Sales	(8,007)	(17,833)
Settlements	(5,806)	(4)
Issuances	0	0
Net transfers into (out of) Level 3	13,773	3,179
Ending Balance	33,199	29,784
Changes in unrealized gains/losses included in earnings relating to instruments still held	3,214	(1,698)
Residential mortgage-backed securities
Assets:
Beginning Balance	21,826	17,740
Total gains (losses) (realized and unrealized)	1,327	(280)
Purchases	791	0
Sales	(627)	0
Settlements	(514)	(3)
Issuances	0	0
Net transfers into (out of) Level 3	(1,111)	(487)
Ending Balance	21,692	16,970
Changes in unrealized gains/losses included in earnings relating to instruments still held	1,347	(250)
Commercial mortgage-backed securities
Assets:
Beginning Balance	2,003	6,110
Total gains (losses) (realized and unrealized)	(29)	(306)
Purchases	1,105	0
Sales	(393)	0
Settlements	0	(1,401)
Issuances	0	0
Net transfers into (out of) Level 3	(15)	(139)
Ending Balance	2,671	4,264
Changes in unrealized gains/losses included in earnings relating to instruments still held	97	571
Liabilities:
Beginning Balance	35	35
Total gains/ losses (realized and unrealized)	0	0
Purchases	(35)	0
Sales	35	0
Settlements	0	0
Issuances	0	0
Net transfers into (out of) Level 3	0	0
Ending Balance	35	35
Changes in unrealized gains/losses included in earnings relating to instruments still held	0	0
Other asset-backed securities
Assets:
Beginning Balance	79,995	42,563
Total gains (losses) (realized and unrealized)	2,361	(4,159)
Purchases	14,604	81,323
Sales	(20,909)	(72,032)
Settlements	(8,449)	(1,974)
Issuances	0	0
Net transfers into (out of) Level 3	(7,008)	(3,818)
Ending Balance	60,594	41,903
Changes in unrealized gains/losses included in earnings relating to instruments still held	1,721	(3,797)
Loans and other receivables
Assets:
Beginning Balance	134,636	114,080
Total gains (losses) (realized and unrealized)	14,077	(4,307)
Purchases	8,758	62,940
Sales	(44,427)	(13,042)
Settlements	(66)	(57,479)
Issuances	0	0
Net transfers into (out of) Level 3	36,106	1,051
Ending Balance	149,084	103,243
Changes in unrealized gains/losses included in earnings relating to instruments still held	14,091	(6,187)
Investments at fair value
Assets:
Beginning Balance	213,946	205,412
Total gains (losses) (realized and unrealized)	76,257	(27,333)
Purchases	4,855	6,504
Sales	(30,159)	(76)
Settlements	(3,542)	0
Issuances	0	0
Net transfers into (out of) Level 3	(41,816)	0
Ending Balance	219,541	184,507
Changes in unrealized gains/losses included in earnings relating to instruments still held	72,173	(27,333)
FXCM term loan
Assets:
Beginning Balance	59,455	59,120
Total gains (losses) (realized and unrealized)	2,677	2,508
Purchases	0	0
Sales	0	0
Settlements	0	0
Issuances	0	0
Net transfers into (out of) Level 3	0	0
Ending Balance	62,132	61,628
Changes in unrealized gains/losses included in earnings relating to instruments still held	2,677	2,508
Loans to and investments in associated companies
Assets:
Beginning Balance	40,185
Total gains (losses) (realized and unrealized)	(788)
Purchases	0
Sales	0
Settlements	0
Issuances	0
Net transfers into (out of) Level 3	0
Ending Balance	39,397
Changes in unrealized gains/losses included in earnings relating to instruments still held	(788)
Securities purchased under agreements to resell
Assets:
Beginning Balance		25,000
Total gains (losses) (realized and unrealized)		0
Purchases		0
Sales		0
Settlements		(25,000)
Issuances		0
Net transfers into (out of) Level 3		0
Ending Balance		0
Changes in unrealized gains/losses included in earnings relating to instruments still held		0
Loans
Liabilities:
Beginning Balance	16,635	9,463
Total gains/ losses (realized and unrealized)	1,559	1
Purchases	(6,821)	(9,872)
Sales	3,358	2,781
Settlements	0	0
Issuances	0	0
Net transfers into (out of) Level 3	185	5,486
Ending Balance	14,916	7,859
Changes in unrealized gains/losses included in earnings relating to instruments still held	(1,559)	(1)
Net derivatives
Liabilities:
Beginning Balance	26,017	77,168
Total gains/ losses (realized and unrealized)	43,727	(17,528)
Purchases	0	(278)
Sales	12,670	5,627
Settlements	(92)	192
Issuances	0	0
Net transfers into (out of) Level 3	223,184	45,662
Ending Balance	305,506	110,843
Changes in unrealized gains/losses included in earnings relating to instruments still held	(43,727)	17,460
Other secured financings
Liabilities:
Beginning Balance	1,543
Total gains/ losses (realized and unrealized)	0
Purchases	0
Sales	0
Settlements	0
Issuances	625
Net transfers into (out of) Level 3	0
Ending Balance	2,168
Changes in unrealized gains/losses included in earnings relating to instruments still held	0
Long-term debt
Liabilities:
Beginning Balance	676,028	480,069
Total gains/ losses (realized and unrealized)	25,357	(9,016)
Purchases	0	0
Sales	0	0
Settlements	0	0
Issuances	21,730	128,475
Net transfers into (out of) Level 3	0	(56,065)
Ending Balance	723,115	543,463
Changes in unrealized gains/losses included in earnings relating to instruments still held	$ 15,501	$ (5,590)

Fair Value Disclosures - Analys

Fair Value Disclosures - Analysis of Level 3 Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3	$ 75,800	$ 85,300
Transfers of assets from Level 3 to Level 2	68,900	16,800
Transfers of liabilities from Level 2 to Level 3	236,700	102,500
Transfers of liabilities from Level 3 to Level 2	13,300	107,400
Net gains (losses) on Level 3 assets (realized and unrealized)	102,200	(42,800)
Net gains (losses) on Level 3 liabilities (realized and unrealized)	(72,100)	26,400
Excluded assets from unobservable quantitative information	202,300		$ 192,000
Excluded liabilities from unobservable quantitative information			$ 800
Loans and other receivables
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3	42,900	6,000
Transfers of assets from Level 3 to Level 2	6,800	4,900
Net gains (losses) on Level 3 assets (realized and unrealized)	14,077	(4,307)
CDOs and CLOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3	14,600
Net gains (losses) on Level 3 assets (realized and unrealized)	3,840	(1,940)
Other asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3	7,500
Transfers of assets from Level 3 to Level 2	14,500	6,300
Net gains (losses) on Level 3 assets (realized and unrealized)	2,361	(4,159)
Loans to and investments in associated companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains (losses) on Level 3 assets (realized and unrealized)	(788)
Corporate equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3	9,900	55,400
Transfers of assets from Level 3 to Level 2		2,700
Net gains (losses) on Level 3 assets (realized and unrealized)	2,339	(8,280)
Net gains (losses) on Level 3 liabilities (realized and unrealized)	(9)	(291)
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 2 to Level 3		16,500
Transfers of assets from Level 3 to Level 2	17,500
Net gains (losses) on Level 3 assets (realized and unrealized)	266	1,269
Net gains (losses) on Level 3 liabilities (realized and unrealized)	(1,430)	189
Net derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of liabilities from Level 2 to Level 3	236,500	83,000
Transfers of liabilities from Level 3 to Level 2	13,300	37,300
Net gains (losses) on Level 3 liabilities (realized and unrealized)	(43,727)	17,528
Structured notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of liabilities from Level 2 to Level 3		13,100
Transfers of liabilities from Level 3 to Level 2		69,100
Investments at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from Level 3 to Level 2	24,200
Net gains (losses) on Level 3 assets (realized and unrealized)	$ 76,257	$ (27,333)

Fair Value Disclosures - Quanti

Fair Value Disclosures - Quantitative Information About Significant Unobservable Inputs Used in Level 3 Fair Value Measurements (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 28, 2021USD ($)€ / Bond$ / shares$ / Bond€ / shares	Nov. 30, 2020USD ($)	Nov. 30, 2020$ / shares	Nov. 30, 2020	Nov. 30, 2020$ / Bond	Nov. 30, 2020€ / shares	Nov. 30, 2020€ / Bond
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 18,070,709	$ 17,159,193
Derivative assets	529,923	481,007
Financial instruments sold, not yet purchased, at fair value	12,370,254	10,017,600
Derivative liability	1,093,650	641,143
Other secured financings	2,168	1,543
Long-term debt, fair value	1,784,157	1,712,245
Loans to and investments in associated companies	39,397	48,788
Corporate debt securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	3,458,644	2,977,382
Financial instruments sold, not yet purchased, at fair value	1,826,029	1,237,772
CDOs and CLOs
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	124,853	82,127
Residential mortgage-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	1,902,515	1,122,675
Financial instruments sold, not yet purchased, at fair value		477
Commercial mortgage-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	39,684	738,294
Financial instruments sold, not yet purchased, at fair value	35	35
Other asset-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	124,550	183,606
Loans and other receivables
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	3,249,001	2,745,382
Corporate equity securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	3,033,286	2,609,950
Financial instruments sold, not yet purchased, at fair value	2,130,512	2,059,921
Loans
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, at fair value	2,341,222	1,793,081
Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	697,186	650,561
Financial instruments sold, not yet purchased, at fair value	365,868	68,940
Other secured financings	2,168	1,543
Long-term debt, fair value	723,115	676,028
Loans to and investments in associated companies	39,397	40,185
Level 3 | Volatility benchmarking and market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative assets	38,014	19,951
Derivative liability	344,903	46,971
Level 3 | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Other secured financings	$ 2,168	1,543
Level 3 | Price | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Long-term debt, measurement input | $ / Bond	104				100
Level 3 | Price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Long-term debt, measurement input | € / Bond	82						76
Level 3 | Price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Long-term debt, measurement input | € / Bond	112						113
Level 3 | Price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Long-term debt, measurement input | € / Bond	102						99
Level 3 | Non-exchange-traded securities | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 101,958	75,409
Level 3 | Non-exchange-traded securities | Price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	1		1
Level 3 | Non-exchange-traded securities | Price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	213		213
Level 3 | Non-exchange-traded securities | Price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	62		86
Level 3 | Non-exchange-traded securities | EBITDA multiple | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	8
Level 3 | Non-exchange-traded securities | EBITDA multiple | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				4
Level 3 | Non-exchange-traded securities | EBITDA multiple | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				8
Level 3 | Non-exchange-traded securities | EBITDA multiple | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0			5.7
Level 3 | Corporate debt securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 6,811	23,146
Financial instruments sold, not yet purchased, at fair value	1,571	141
Level 3 | Corporate debt securities | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	6,811
Financial instruments sold, not yet purchased, at fair value	$ 1,571	141
Level 3 | Corporate debt securities | Market approach and scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value		23,146
Level 3 | Corporate debt securities | Price | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / Bond					69
Level 3 | Corporate debt securities | Estimated recovery percentage | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input	0.20			0.20
Level 3 | Corporate debt securities | Estimated recovery percentage | Scenario analysis | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.20			0.20
Level 3 | Corporate debt securities | Estimated recovery percentage | Scenario analysis | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.44			0.44
Level 3 | Corporate debt securities | Estimated recovery percentage | Scenario analysis | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.30			0.30
Level 3 | CDOs and CLOs
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 33,199	17,972
Level 3 | CDOs and CLOs | Discounted cash flows and scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 31,885	17,972
Level 3 | CDOs and CLOs | Estimated recovery percentage | Scenario analysis | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.16			0.02
Level 3 | CDOs and CLOs | Estimated recovery percentage | Scenario analysis | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.33			0.34
Level 3 | CDOs and CLOs | Estimated recovery percentage | Scenario analysis | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.23			0.23
Level 3 | CDOs and CLOs | Constant prepayment rate | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.20
Level 3 | CDOs and CLOs | Constant prepayment rate | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.08
Level 3 | CDOs and CLOs | Constant prepayment rate | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.20
Level 3 | CDOs and CLOs | Constant prepayment rate | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.19			0
Level 3 | CDOs and CLOs | Constant default rate | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.02			0.02
Level 3 | CDOs and CLOs | Constant default rate | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0			0
Level 3 | CDOs and CLOs | Loss severity | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.25			0.25
Level 3 | CDOs and CLOs | Loss severity | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.35			0.30
Level 3 | CDOs and CLOs | Loss severity | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.26			0.26
Level 3 | CDOs and CLOs | Discount rate/yield | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.04			0.14
Level 3 | CDOs and CLOs | Discount rate/yield | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.21			0.28
Level 3 | CDOs and CLOs | Discount rate/yield | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.16			0.20
Level 3 | Residential mortgage-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 21,692	21,826
Financial instruments sold, not yet purchased, at fair value		0
Level 3 | Residential mortgage-backed securities | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 21,692	$ 21,826
Level 3 | Residential mortgage-backed securities | Loss severity | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.35
Level 3 | Residential mortgage-backed securities | Loss severity | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.35
Level 3 | Residential mortgage-backed securities | Loss severity | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.50
Level 3 | Residential mortgage-backed securities | Loss severity | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0			0.36
Level 3 | Residential mortgage-backed securities | Discount rate/yield | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.03			0.03
Level 3 | Residential mortgage-backed securities | Discount rate/yield | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.04			0.12
Level 3 | Residential mortgage-backed securities | Discount rate/yield | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.03			0.04
Level 3 | Residential mortgage-backed securities | Cumulative loss rate | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.03
Level 3 | Residential mortgage-backed securities | Cumulative loss rate | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.02
Level 3 | Residential mortgage-backed securities | Cumulative loss rate | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.03
Level 3 | Residential mortgage-backed securities | Cumulative loss rate | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.03
Level 3 | Residential mortgage-backed securities | Duration (years) | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	3 years	2 years
Level 3 | Residential mortgage-backed securities | Duration (years) | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	5 years 6 months	12 years 10 months 24 days
Level 3 | Residential mortgage-backed securities | Duration (years) | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	4 years 10 months 24 days	5 years 1 month 6 days
Level 3 | Commercial mortgage-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 2,671	$ 2,003
Financial instruments sold, not yet purchased, at fair value	35	35
Level 3 | Commercial mortgage-backed securities | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 2,671
Level 3 | Commercial mortgage-backed securities | Loss severity | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.65
Level 3 | Commercial mortgage-backed securities | Discount rate/yield | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.16
Level 3 | Commercial mortgage-backed securities | Cumulative loss rate | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.10
Level 3 | Commercial mortgage-backed securities | Duration (years) | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	2 months 12 days
Level 3 | Other asset-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 60,594	79,995
Level 3 | Other asset-backed securities | Discounted cash flows and market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 60,594	$ 67,816
Level 3 | Other asset-backed securities | Price | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / Bond	100				100
Level 3 | Other asset-backed securities | Loss severity | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.50
Level 3 | Other asset-backed securities | Loss severity | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.85
Level 3 | Other asset-backed securities | Loss severity | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input				0.54
Level 3 | Other asset-backed securities | Discount rate/yield | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.03			0.01
Level 3 | Other asset-backed securities | Discount rate/yield | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.14			0.16
Level 3 | Other asset-backed securities | Discount rate/yield | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.09			0.09
Level 3 | Other asset-backed securities | Cumulative loss rate | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.08			0.01
Level 3 | Other asset-backed securities | Cumulative loss rate | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.19			0.28
Level 3 | Other asset-backed securities | Cumulative loss rate | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.13			0.11
Level 3 | Other asset-backed securities | Duration (years) | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	10 months 24 days	2 months 12 days
Level 3 | Other asset-backed securities | Duration (years) | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	2 years	2 years 1 month 6 days
Level 3 | Other asset-backed securities | Duration (years) | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	1 year 6 months	1 year 3 months 18 days
Level 3 | Loans and other receivables
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 149,084	$ 134,636
Level 3 | Loans and other receivables | Market approach and scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 79,055	76,049
Level 3 | Loans and other receivables | Price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / Bond	31				31
Level 3 | Loans and other receivables | Price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / Bond	101				100
Level 3 | Loans and other receivables | Price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / Bond	83				84
Level 3 | Loans and other receivables | Estimated recovery percentage | Scenario analysis | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0			0.19
Level 3 | Loans and other receivables | Estimated recovery percentage | Scenario analysis | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	1			1
Level 3 | Loans and other receivables | Estimated recovery percentage | Scenario analysis | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.41			0.52
Level 3 | Equity options | Volatility | Volatility benchmarking
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input				0.47
Level 3 | Equity options | Volatility | Volatility benchmarking | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	0.41
Derivative liability, measurement input	0.29			0.33
Level 3 | Equity options | Volatility | Volatility benchmarking | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	0.57
Derivative liability, measurement input	0.62			0.50
Level 3 | Equity options | Volatility | Volatility benchmarking | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	0.54			0
Derivative liability, measurement input	0.46			0.42
Level 3 | Interest rate swaps | Basis points upfront | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	0.7			1.2
Derivative liability, measurement input	0.7			1.2
Level 3 | Interest rate swaps | Basis points upfront | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	6.4			8
Derivative liability, measurement input	6.4			8
Level 3 | Interest rate swaps | Basis points upfront | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative asset, measurement input	3.3			4.8
Derivative liability, measurement input	3.5			5.4
Level 3 | Private equity securities | Market approach and scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 89,889	96,906
Level 3 | Private equity securities | Price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	3		1
Level 3 | Private equity securities | Price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	169		169
Level 3 | Private equity securities | Price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input | $ / shares	38		29
Level 3 | Private equity securities | Estimated recovery percentage | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.17			0.17
Level 3 | Private equity securities | Discount rate/yield | Scenario analysis | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.19			0.19
Level 3 | Private equity securities | Discount rate/yield | Scenario analysis | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.21			0.21
Level 3 | Private equity securities | Discount rate/yield | Scenario analysis | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0.20			0.20
Level 3 | Private equity securities | Revenue growth | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input	0			0
Level 3 | FXCM term loan | Discounted cash flows
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 62,132	$ 59,455
Level 3 | FXCM term loan | Term based on the pay off (years) | Discounted cash flows | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	0 months	0 months
Level 3 | FXCM term loan | Term based on the pay off (years) | Discounted cash flows | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	1 year	1 year 2 months 12 days
Level 3 | FXCM term loan | Term based on the pay off (years) | Discounted cash flows | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instrument owned, measurement input, term	1 year	1 year 2 months 12 days
Level 3 | Non-exchange-traded warrants | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies	$ 39,397	$ 40,185
Level 3 | Non-exchange-traded warrants | Volatility | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	0.25			0.25
Level 3 | Non-exchange-traded warrants | Volatility | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	0.60			0.55
Level 3 | Non-exchange-traded warrants | Volatility | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	0.30			0.30
Level 3 | Non-exchange-traded warrants | Underlying stock price | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input | $ / shares	675
Level 3 | Non-exchange-traded warrants | Underlying stock price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	16		778			15
Level 3 | Non-exchange-traded warrants | Underlying stock price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	18		805			19
Level 3 | Non-exchange-traded warrants | Underlying stock price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans to and investments in associated companies, measurement input	17		792			16
Level 3 | Corporate equity securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments owned, at fair value	$ 102,065	75,904
Financial instruments sold, not yet purchased, at fair value	4,443	4,434
Level 3 | Corporate equity securities | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, at fair value	$ 4,443	4,434
Level 3 | Corporate equity securities | Price | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input | $ / shares	1		1
Level 3 | Loans
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, at fair value	$ 14,916	16,635
Level 3 | Loans | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, at fair value		16,635
Level 3 | Loans | Market approach and scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, at fair value	$ 14,916
Level 3 | Loans | Price | Market approach | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input | $ / Bond	31				31
Level 3 | Loans | Price | Market approach | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input | $ / Bond	50				99
Level 3 | Loans | Price | Market approach | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input | $ / Bond	35				55
Level 3 | Loans | Estimated recovery percentage | Scenario analysis
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Financial instruments sold, not yet purchased, measurement input	0.05
Level 3 | Other secured financings | Estimated recovery percentage | Scenario analysis | Minimum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Other secured financings, measurement input	0.19
Collateralized financings, measurement input				0.19
Level 3 | Other secured financings | Estimated recovery percentage | Scenario analysis | Maximum
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Other secured financings, measurement input	1
Collateralized financings, measurement input				0.55
Level 3 | Other secured financings | Estimated recovery percentage | Scenario analysis | Weighted Average
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Other secured financings, measurement input	0.61
Collateralized financings, measurement input				0.45
Level 3 | Long-term debt: | Market approach
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Long-term debt, fair value	$ 723,115	$ 676,028

Fair Value Disclosures - Summar

Fair Value Disclosures - Summary of Gains (Losses) Due to Changes in Instrument Specific Credit Risk on Loans, Other Receivables and Debt Instruments Measured at Fair Value Under Fair Value Option (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans and other receivables	$ 10,696	$ 1,739
Loans	0	(610)
Loan commitments	0	(661)
Changes in instrument specific credit risk	222	252
Short-term borrowings
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in instrument specific credit risk	0	57
Other changes in fair value	0	12
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in instrument specific credit risk	(91,982)	29,432
Other changes in fair value	$ 80,819	$ (37,642)

Fair Value Disclosures - Summ_2

Fair Value Disclosures - Summary of Amount by which Contractual Principal Exceeds Fair Value For Loans and Other Receivables Measured at Fair Value Under Fair Value Option (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Fair Value Disclosures [Abstract]
Loans and other receivables	$ 5,826,957	$ 1,662,647
Loans and other receivables on nonaccrual status and/or 90 days or greater past due	252,790	287,889
Long-term debt and short-term borrowings	(53,138)	(42,819)
Other secured financings	2,782	2,782
All loans and other receivables 90 days or greater past due	$ 30,200	$ 30,000

Fair Value Disclosures - Fair V

Fair Value Disclosures - Fair Value Option Election (Details) - USD ($) $ in Millions	Feb. 28, 2021	Nov. 30, 2020
Fair Value Disclosures [Abstract]
Loans and other receivables on nonaccrual status and/or 90 days or greater past due	$ 5.4	$ 69.7
Loans and other receivables 90 days or greater past due	$ 4.1	$ 3.8

Fair Value Disclosures - Financ

Fair Value Disclosures - Financial Instruments Not Measured at Fair Value, Narrative (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and securities segregated under federal and other regulations	$ 615,115	$ 604,321
US treasury securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and securities segregated under federal and other regulations	$ 118,500	$ 34,200

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value and Related Number of Derivative Contracts Categorized by Predominant Risk Exposure (Details) $ in Thousands	Feb. 28, 2021USD ($)contract	Nov. 30, 2020USD ($)contract
Derivatives, Fair Value [Line Items]
Net amounts per consolidated statement of financial condition, assets	$ 529,923	$ 481,007
Net amounts per consolidated statement of financial condition, liabilities	1,093,650	641,143
Cleared OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	484,790	109,456
Fair value, liabilities	374,473	147,713
Amounts offset in consolidated statement of financial condition, assets	(372,819)	(109,228)
Amounts offset in consolidated statement of financial condition, liabilities	(374,358)	(111,654)
Exchange-traded
Derivatives, Fair Value [Line Items]
Fair value, assets	1,188,274	560,810
Fair value, liabilities	1,223,227	565,390
Amounts offset in consolidated statement of financial condition, assets	(1,137,116)	(546,989)
Amounts offset in consolidated statement of financial condition, liabilities	(1,137,116)	(546,989)
Bilateral OTC
Derivatives, Fair Value [Line Items]
Fair value, assets	1,461,466	1,366,877
Fair value, liabilities	2,493,053	1,726,699
Amounts offset in consolidated statement of financial condition, assets	(1,094,672)	(899,919)
Amounts offset in consolidated statement of financial condition, liabilities	(1,485,629)	(1,140,016)
Designated as accounting hedges
Derivatives, Fair Value [Line Items]
Fair value, assets	45,638	67,381
Fair value, liabilities	78,073	10,197
Designated as accounting hedges | Cleared OTC | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 45,638	$ 67,381
Number of contracts, assets | contract	1	1
Fair value, liabilities	$ 32,653	$ 6,891
Number of contracts, liabilities | contract	1	0
Designated as accounting hedges | Bilateral OTC | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 0	$ 0
Number of contracts, assets | contract	0	0
Fair value, liabilities	$ 45,420	$ 3,306
Number of contracts, liabilities | contract	18	1
Not designated as accounting hedges
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 3,088,892	$ 1,969,762
Fair value, liabilities	4,012,680	2,429,605
Not designated as accounting hedges | Cleared OTC | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 404,775	$ 17,379
Number of contracts, assets | contract	4,746	3,785
Fair value, liabilities	$ 305,691	$ 114,524
Number of contracts, liabilities | contract	4,364	4,307
Not designated as accounting hedges | Cleared OTC | Credit contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 34,377	$ 24,696
Number of contracts, assets | contract	80	39
Fair value, liabilities	$ 36,129	$ 26,298
Number of contracts, liabilities | contract	56	31
Not designated as accounting hedges | Exchange-traded | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 2,626	$ 2,442
Number of contracts, assets | contract	46,454	52,620
Fair value, liabilities	$ 2,305	$ 439
Number of contracts, liabilities | contract	16,056	42,611
Not designated as accounting hedges | Exchange-traded | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 0	$ 0
Number of contracts, assets | contract	0	0
Fair value, liabilities	$ 0	$ 0
Number of contracts, liabilities | contract	195	180
Not designated as accounting hedges | Exchange-traded | Equity contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 1,185,344	$ 558,304
Number of contracts, assets | contract	951,246	1,147,486
Fair value, liabilities	$ 1,220,922	$ 564,951
Number of contracts, liabilities | contract	845,486	971,938
Not designated as accounting hedges | Exchange-traded | Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 304	$ 64
Number of contracts, assets | contract	3,057	3,207
Fair value, liabilities	$ 0	$ 0
Number of contracts, liabilities | contract	2,070	2,654
Not designated as accounting hedges | Bilateral OTC | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 489,918	$ 626,210
Number of contracts, assets | contract	660	1,493
Fair value, liabilities	$ 450,254	$ 317,534
Number of contracts, liabilities | contract	1,491	466
Not designated as accounting hedges | Bilateral OTC | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 470,949	$ 297,165
Number of contracts, assets | contract	18,733	15,005
Fair value, liabilities	$ 450,054	$ 277,706
Number of contracts, liabilities | contract	18,609	15,050
Not designated as accounting hedges | Bilateral OTC | Equity contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 495,951	$ 429,304
Number of contracts, assets | contract	2,435	2,374
Fair value, liabilities	$ 1,529,978	$ 1,125,944
Number of contracts, liabilities | contract	2,487	2,421
Not designated as accounting hedges | Bilateral OTC | Commodity contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 0	$ 13,190
Number of contracts, assets | contract	1	1,556
Fair value, liabilities	$ 8,712	$ 0
Number of contracts, liabilities | contract	1,515	0
Not designated as accounting hedges | Bilateral OTC | Credit contracts
Derivatives, Fair Value [Line Items]
Fair value, assets	$ 4,648	$ 1,008
Number of contracts, assets | contract	13	11
Fair value, liabilities	$ 8,635	$ 2,209
Number of contracts, liabilities | contract	15	11

Derivative Financial Instrume_4

Derivative Financial Instruments - Unrealized and Realized Gains (Losses) on Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense of Jefferies Group	$ 3,020	$ (402)
Unrealized and realized gains (losses)	(102,520)	151,901
Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on net investment hedges recognized in other comprehensive income (loss)	(41,500)	0
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	(42,124)	(1,089)
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	46,829	(2,321)
Foreign exchange contracts | Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on net investment hedges recognized in other comprehensive income (loss)	(41,500)	0
Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	(89,697)	136,888
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	(18,349)	16,593
Credit contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	821	1,830
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense of Jefferies Group	(43,791)	24,465
Long-term debt
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense of Jefferies Group	$ 46,811	$ (24,867)

Derivative Financial Instrume_5

Derivative Financial Instruments - Remaining Contract Maturity of Fair Value of OTC Derivative Assets and Liabilities (Details) $ in Thousands	Feb. 28, 2021USD ($)
OTC Derivative Assets
0-12 Months	$ 410,215
1-5 Years	170,559
Greater Than 5 Years	167,823
Cross- maturity netting	(59,603)
Total OTC derivative assets, net of cross-maturity netting	688,994
Cross product counterparty netting	(24,263)
Total OTC derivative assets included in Financial instruments owned, at fair value	664,731
OTC Derivative Liabilities
0-12 Months	438,877
1-5 Years	975,809
Greater Than 5 Years	259,591
Cross-maturity netting	(59,603)
Total	1,614,674
Cross product counterparty netting	(24,263)
Total OTC derivative liabilities included in Financial instruments sold, not yet purchased, at fair value	1,590,411
Exchange traded derivative assets and other credit agreements	61,400
Cash collateral received	196,200
Exchange traded derivative liabilities and other credit agreements	91,900
Cash collateral pledged	588,700
Equity options and forwards
OTC Derivative Assets
0-12 Months	29,936
1-5 Years	1,526
Greater Than 5 Years	13,544
Cross- maturity netting	(20,365)
Total OTC derivative assets, net of cross-maturity netting	24,641
OTC Derivative Liabilities
0-12 Months	19,834
1-5 Years	522,218
Greater Than 5 Years	143,586
Cross-maturity netting	(20,365)
Total	665,273
Commodity swaps, options and forwards
OTC Derivative Liabilities
0-12 Months	6,604
1-5 Years	2,108
Greater Than 5 Years	0
Cross-maturity netting	0
Total	8,712
Credit default swaps
OTC Derivative Assets
0-12 Months	2
1-5 Years	759
Greater Than 5 Years	0
Cross- maturity netting	0
Total OTC derivative assets, net of cross-maturity netting	761
OTC Derivative Liabilities
0-12 Months	20
1-5 Years	3,530
Greater Than 5 Years	0
Cross-maturity netting	0
Total	3,550
Total return swaps
OTC Derivative Assets
0-12 Months	130,651
1-5 Years	16,711
Greater Than 5 Years	0
Cross- maturity netting	(4,147)
Total OTC derivative assets, net of cross-maturity netting	143,215
OTC Derivative Liabilities
0-12 Months	152,604
1-5 Years	382,556
Greater Than 5 Years	1,641
Cross-maturity netting	(4,147)
Total	532,654
Foreign currency forwards, swaps and options
OTC Derivative Assets
0-12 Months	85,919
1-5 Years	13,318
Greater Than 5 Years	0
Cross- maturity netting	(5,524)
Total OTC derivative assets, net of cross-maturity netting	93,713
OTC Derivative Liabilities
0-12 Months	114,279
1-5 Years	8,811
Greater Than 5 Years	0
Cross-maturity netting	(5,524)
Total	117,566
Fixed income forwards
OTC Derivative Liabilities
0-12 Months	5,359
1-5 Years	0
Greater Than 5 Years	0
Cross-maturity netting	0
Total	5,359
Interest rate swaps, options and forwards
OTC Derivative Assets
0-12 Months	163,707
1-5 Years	138,245
Greater Than 5 Years	154,279
Cross- maturity netting	(29,567)
Total OTC derivative assets, net of cross-maturity netting	426,664
OTC Derivative Liabilities
0-12 Months	140,177
1-5 Years	56,586
Greater Than 5 Years	114,364
Cross-maturity netting	(29,567)
Total	$ 281,560

Derivative Financial Instrume_6

Derivative Financial Instruments (Counterparty Credit Quality with Respect to Fair Value of OTC Derivatives Assets) (Details) $ in Thousands	Feb. 28, 2021USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
A- or higher	$ 162,505
BBB- to BBB+	38,774
BB+ or lower	201,073
Unrated	262,379
Total OTC derivative assets included in Financial instruments owned, at fair value	$ 664,731

Derivative Financial Instrume_7

Derivative Financial Instruments (Credit Related Derivative Contracts) (Details) - USD ($) $ in Millions	Feb. 28, 2021	Nov. 30, 2020
Index credit default swaps
Derivative [Line Items]
Notional amount	$ 1,380	$ 324.8
Single name credit default swaps
Derivative [Line Items]
Notional amount	93.6	6.4
Investment Grade | Index credit default swaps
Derivative [Line Items]
Notional amount	921	62
Investment Grade | Single name credit default swaps
Derivative [Line Items]
Notional amount	87.2	0
Non-investment grade | Index credit default swaps
Derivative [Line Items]
Notional amount	459	262.8
Non-investment grade | Single name credit default swaps
Derivative [Line Items]
Notional amount	6.2	6.2
Unrated | Index credit default swaps
Derivative [Line Items]
Notional amount	0	0
Unrated | Single name credit default swaps
Derivative [Line Items]
Notional amount	$ 0.2	$ 0.2

Derivative Financial Instrume_8

Derivative Financial Instruments (Contingent Features) (Details) - USD ($) $ in Millions	Feb. 28, 2021	Nov. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative instrument liabilities with credit-risk-related contingent features	$ 464.6	$ 284.6
Collateral posted	(33)	(129.8)
Collateral received	244.1	141.4
Return of and additional collateral required in the event of a credit rating downgrade below investment grade	$ 675.7	$ 296.2

Collateralized Transactions - C

Collateralized Transactions - Collateral Pledged (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	$ 2,519,077	$ 1,810,748
Repurchase agreements	16,859,028	15,159,273
Obligation to return securities received as collateral, at fair value	0	7,517
Total	19,378,105	16,977,538
Corporate equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	2,067,474	1,371,978
Repurchase agreements	245,823	157,912
Obligation to return securities received as collateral, at fair value	0	7,517
Total	2,313,297	1,537,407
Corporate debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	372,966	369,218
Repurchase agreements	2,113,427	1,869,844
Obligation to return securities received as collateral, at fair value	0	0
Total	2,486,393	2,239,062
Mortgage-backed and asset-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	0	0
Repurchase agreements	1,378,273	1,547,140
Obligation to return securities received as collateral, at fair value	0	0
Total	1,378,273	1,547,140
U.S. government and federal agency securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	20,353	14,789
Repurchase agreements	9,417,370	7,149,992
Obligation to return securities received as collateral, at fair value	0	0
Total	9,437,723	7,164,781
Municipal securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	0	0
Repurchase agreements	138,344	278,470
Obligation to return securities received as collateral, at fair value	0	0
Total	138,344	278,470
Sovereign obligations
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	58,284	54,763
Repurchase agreements	2,584,304	2,763,032
Obligation to return securities received as collateral, at fair value	0	0
Total	2,642,588	2,817,795
Loans and other receivables
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	0	0
Repurchase agreements	981,487	1,392,883
Obligation to return securities received as collateral, at fair value	0	0
Total	$ 981,487	$ 1,392,883

Collateralized Transactions -_2

Collateralized Transactions - Contractual Maturity (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	$ 2,519,077	$ 1,810,748
Repurchase agreements	16,859,028	15,159,273
Obligation to return securities received as collateral, at fair value	0	7,517
Total	19,378,105	16,977,538
Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	1,080,237	636,256
Repurchase agreements	7,711,109	5,510,476
Obligation to return securities received as collateral, at fair value		7,517
Total	8,791,346	6,154,249
Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	0	59,735
Repurchase agreements	3,146,550	1,747,526
Obligation to return securities received as collateral, at fair value		0
Total	3,146,550	1,807,261
31 to 90 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	482,281	459,455
Repurchase agreements	3,313,696	5,019,885
Obligation to return securities received as collateral, at fair value		0
Total	3,795,977	5,479,340
Greater than 90 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending arrangements	956,559	655,302
Repurchase agreements	2,687,673	2,881,386
Obligation to return securities received as collateral, at fair value		0
Total	$ 3,644,232	$ 3,536,688

Collateralized Transactions - N

Collateralized Transactions - Narrative (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Collateralized Transactions [Abstract]
Fair value of securities received as collateral that may be sold or repledged	$ 32,800,000	$ 25,900,000
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	$ 615,115	$ 604,321

Collateralized Transactions - O

Collateralized Transactions - Offsetting of Securities Financing Agreements (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Securities borrowing arrangements, Assets
Gross Amounts	$ 7,150,657	$ 6,934,762
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	7,150,657	6,934,762
Additional Amounts Available for Setoff	(567,061)	(395,342)
Available Collateral	(1,984,216)	(1,706,046)
Net Amount	4,599,380	4,833,374
Reverse repurchase agreements, Assets
Gross Amounts	16,331,676	11,939,773
Netting in Consolidated Statements of Financial Condition	(9,651,392)	(6,843,004)
Net Amounts in Consolidated Statements of Financial Condition	6,680,284	5,096,769
Additional Amounts Available for Setoff	(283,889)	(412,327)
Available Collateral	(6,328,407)	(4,578,560)
Net Amount	67,988	105,882
Securities lending arrangements, Liabilities
Gross Amounts	2,519,077	1,810,748
Netting in Consolidated Statements of Financial Condition	0	0
Net Amounts in Consolidated Statements of Financial Condition	2,519,077	1,810,748
Additional Amounts Available for Setoff	(567,061)	(395,342)
Available Collateral	(1,908,973)	(1,397,550)
Net Amount	43,043	17,856
Repurchase agreements, Liabilities
Gross Amounts	16,859,028	15,159,273
Netting in Consolidated Statements of Financial Condition	(9,651,392)	(6,843,004)
Net Amounts in Consolidated Statements of Financial Condition	7,207,636	8,316,269
Additional Amounts Available for Setoff	(283,889)	(412,327)
Available Collateral	(6,408,994)	(7,122,422)
Net Amount	514,753	781,520
Securities borrowing agreement, subject to review	4,511,400	4,757,800
Securities borrowing agreement, collateral received, subject to review	4,383,800	4,617,000
Repurchase agreement, net amount, subject to review	505,000	720,000
Repurchase agreements, collateral pledged, subject to review	$ 520,200	733,900
Obligation to return securities received as collateral, at fair value
Securities lending arrangements, Liabilities
Gross Amounts		7,517
Netting in Consolidated Statements of Financial Condition		0
Net Amounts in Consolidated Statements of Financial Condition		7,517
Additional Amounts Available for Setoff		0
Available Collateral		0
Net Amount		7,517
Securities received as collateral, at fair value
Securities borrowing arrangements, Assets
Gross Amounts		7,517
Netting in Consolidated Statements of Financial Condition		0
Net Amounts in Consolidated Statements of Financial Condition		7,517
Additional Amounts Available for Setoff		0
Available Collateral		0
Net Amount		$ 7,517

Securitization Activities - Act

Securitization Activities - Activity Related to Securitizations Accounted for as Sales (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Transfers and Servicing [Abstract]
Transferred assets	$ 3,583.5	$ 2,334.6
Proceeds on new securitizations	3,583.1	2,334.7
Cash flows received on retained interests	$ 6.3	$ 7

Securitization Activities - Sum

Securitization Activities - Summary of Retained Interests in SPEs (Details) - USD ($) $ in Millions	Feb. 28, 2021	Nov. 30, 2020
U.S. government agency residential mortgage-backed securities
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
U.S. government agency residential mortgage-backed securities	$ 505.5	$ 562.5
Retained Interests	6.8	7.8
U.S. government agency commercial mortgage-backed securities
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
U.S. government agency commercial mortgage-backed securities	2,051	2,461.2
Retained Interests	102.3	205.2
CLOs
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
CLOs	5,712.5	3,345.5
Retained Interests	70.2	39.5
Consumer and other loans
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Consumer and other loans	1,428.9	1,290.6
Retained Interests	$ 77.8	$ 56.6

Variable Interest Entities - Sc

Variable Interest Entities - Schedule of Consolidated VIEs (Details) - USD ($) $ in Thousands		Feb. 28, 2021	Nov. 30, 2020
Variable Interest Entity [Line Items]
Assets	[1]	$ 56,868,919	$ 53,118,352
Liabilities	[1]	46,934,582	43,530,151
Variable interest entities, primary beneficiary
Variable Interest Entity [Line Items]
Assets		747,100	566,100
Liabilities		4,517,900	3,291,300
Variable interest entities, primary beneficiary | Cash
Variable Interest Entity [Line Items]
VIE assets, eliminated in consolidation		1,200	700
Variable interest entities, primary beneficiary | Other
Variable Interest Entity [Line Items]
VIE assets, eliminated in consolidation			9,700
Variable interest entities, primary beneficiary | Other secured financings
Variable Interest Entity [Line Items]
VIE liabilities, eliminated in consolidation		131,200	138,200
Variable interest entities, primary beneficiary | Other liabilities
Variable Interest Entity [Line Items]
VIE liabilities, eliminated in consolidation		2,100	300
Variable interest entities, primary beneficiary | Secured Funding Vehicles
Variable Interest Entity [Line Items]
Assets		4,637,300	3,465,900
Liabilities		4,641,100	3,426,800
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Cash
Variable Interest Entity [Line Items]
Assets		0	0
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Financial instruments owned, at fair value
Variable Interest Entity [Line Items]
Assets		0	0
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Securities purchased under agreements to resell
Variable Interest Entity [Line Items]
Assets		3,934,300	2,908,900
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Receivables
Variable Interest Entity [Line Items]
Assets		636,500	510,600
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other
Variable Interest Entity [Line Items]
Assets		66,500	46,400
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Financial instruments sold, not yet purchased, at fair value
Variable Interest Entity [Line Items]
Liabilities		0	0
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other secured financings
Variable Interest Entity [Line Items]
Liabilities		4,637,400	3,425,000
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other liabilities
Variable Interest Entity [Line Items]
Liabilities		3,700	1,800
Variable interest entities, primary beneficiary | Other
Variable Interest Entity [Line Items]
Assets		45,200	19,400
Liabilities		9,900	2,900
Variable interest entities, primary beneficiary | Other | Cash
Variable Interest Entity [Line Items]
Assets		1,200	1,200
Variable interest entities, primary beneficiary | Other | Financial instruments owned, at fair value
Variable Interest Entity [Line Items]
Assets		12,600	5,200
Variable interest entities, primary beneficiary | Other | Securities purchased under agreements to resell
Variable Interest Entity [Line Items]
Assets		0	0
Variable interest entities, primary beneficiary | Other | Receivables
Variable Interest Entity [Line Items]
Assets		31,200	12,900
Variable interest entities, primary beneficiary | Other | Other
Variable Interest Entity [Line Items]
Assets		200	100
Variable interest entities, primary beneficiary | Other | Financial instruments sold, not yet purchased, at fair value
Variable Interest Entity [Line Items]
Liabilities		9,400	2,500
Variable interest entities, primary beneficiary | Other | Other secured financings
Variable Interest Entity [Line Items]
Liabilities		0	0
Variable interest entities, primary beneficiary | Other | Other liabilities
Variable Interest Entity [Line Items]
Liabilities		$ 500	$ 400
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) $ in Thousands		3 Months Ended
		Feb. 28, 2021USD ($)facility	Nov. 30, 2020USD ($)	Feb. 29, 2020USD ($)	Nov. 30, 2019USD ($)
Variable Interest Entity [Line Items]
Assets	[1]	$ 56,868,919	$ 53,118,352
Investment in associated company		$ 1,689,048	1,686,563	$ 1,562,628	$ 1,652,957
Foursight Capital Credit Facilities | Line of credit | Foursight Capital
Variable Interest Entity [Line Items]
Number of warehouse credit commitment | facility		2
Other investment vehicles
Variable Interest Entity [Line Items]
Carrying amount of equity investment		$ 909,700	899,900
Unfunded equity commitment related to investments		140,300	143,000
JCP entities | Related party private equity vehicles
Variable Interest Entity [Line Items]
Equity commitments		133,000	133,000
Funded equity commitments		122,100	122,000
Carrying amount of equity investment		18,700	19,000
Variable interest entities, primary beneficiary
Variable Interest Entity [Line Items]
Automobile loan receivables securitized		228,600
Assets		747,100	566,100
VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		1,358,700	1,231,200
VIE, not primary beneficiary | Investment in FXCM
Variable Interest Entity [Line Items]
Fair value of senior secured term loan receivable		62,100
Investment in associated company		68,800
Senior secured term loan receivable and investments in associated companies		130,900
VIE, not primary beneficiary | Related party private equity vehicles
Variable Interest Entity [Line Items]
Assets		18,700	19,000
VIE, not primary beneficiary | Other investment vehicles
Variable Interest Entity [Line Items]
Assets		909,700	899,900
VIE, not primary beneficiary | Agency mortgage-backed securities
Variable Interest Entity [Line Items]
Assets		1,642,600	1,571,600
VIE, not primary beneficiary | Non agency mortgage- and asset-backed securities
Variable Interest Entity [Line Items]
Assets		$ 193,800	$ 252,000
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Variable Interest Entities - _2

Variable Interest Entities - Schedule of Nonconsolidated VIEs (Details) - USD ($) $ in Thousands		Feb. 28, 2021	Nov. 30, 2020
Variable Interest Entity [Line Items]
Assets	[1]	$ 56,868,919	$ 53,118,352
Liabilities	[1]	46,934,582	43,530,151
VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		1,358,700	1,231,200
Liabilities		5,400	200
Maximum Exposure to Loss		2,786,300	2,092,800
VIE Assets		26,395,500	25,100,300
VIE, not primary beneficiary | Investment in FXCM
Variable Interest Entity [Line Items]
VIE Assets		411,900
CLOs | VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		163,400	60,700
Liabilities		5,400	200
Maximum Exposure to Loss		1,343,500	642,700
VIE Assets		9,595,000	6,849,100
Consumer loan and other asset-backed vehicles | VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		266,900	251,600
Liabilities		0	0
Maximum Exposure to Loss		363,300	377,200
VIE Assets		2,580,500	2,462,700
Related party private equity vehicles | VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		18,700	19,000
Liabilities		0	0
Maximum Exposure to Loss		29,500	30,000
VIE Assets		52,300	53,000
Other investment vehicles | VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		909,700	899,900
Liabilities		0	0
Maximum Exposure to Loss		1,050,000	1,042,900
VIE Assets		$ 14,167,700	$ 15,735,500
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Loans to and Investments in A_3

Loans to and Investments in Associated Companies - Schedule of Loans to and Investments In Associated Companies (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	$ 1,686,563	$ 1,652,957
Income (losses) related to associated companies	(10,568)	(67,855)
Other income (losses) related to associated companies primarily classified as revenues	87,906	28,759
Contributions to (distributions from) associated companies, net	(75,119)	(60,517)
Other	266	9,284
Loans to and investments in associated companies as of end of period	1,689,048	1,562,628
Jefferies Finance
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	693,201	673,867
Income (losses) related to associated companies	0	0
Other income (losses) related to associated companies primarily classified as revenues	27,585	5,119
Contributions to (distributions from) associated companies, net	(40,542)	4,871
Other	0	0
Loans to and investments in associated companies as of end of period	680,244	683,857
Berkadia
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	301,152	268,949
Income (losses) related to associated companies	0	0
Other income (losses) related to associated companies primarily classified as revenues	30,018	21,894
Contributions to (distributions from) associated companies, net	(316)	(36,165)
Other	(61)	305
Loans to and investments in associated companies as of end of period	330,793	254,983
FXCM
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	73,920	70,223
Income (losses) related to associated companies	(5,462)	(1,638)
Other income (losses) related to associated companies primarily classified as revenues	0	0
Contributions to (distributions from) associated companies, net	0	0
Other	327	(144)
Loans to and investments in associated companies as of end of period	68,785	68,441
Linkem
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	198,991	194,847
Income (losses) related to associated companies	(9,107)	(13,185)
Other income (losses) related to associated companies primarily classified as revenues	0	0
Contributions to (distributions from) associated companies, net	(8,783)	(359)
Other	0	(113)
Loans to and investments in associated companies as of end of period	181,101	181,190
Real estate associated companies
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	168,678	255,309
Income (losses) related to associated companies	6,051	(53,014)
Other income (losses) related to associated companies primarily classified as revenues	0	0
Contributions to (distributions from) associated companies, net	(10,954)	(29,415)
Other	0	0
Loans to and investments in associated companies as of end of period	163,775	172,880
Other
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	250,621	189,762
Income (losses) related to associated companies	(2,050)	(18)
Other income (losses) related to associated companies primarily classified as revenues	30,303	1,746
Contributions to (distributions from) associated companies, net	(14,524)	551
Other	0	9,236
Loans to and investments in associated companies as of end of period	264,350	201,277
Linkem and Other | Loans and debt securities
Equity Method Investment [Roll Forward]
Loans to and investments in associated companies as of beginning of period	104,100
Loans to and investments in associated companies as of end of period	$ 100,000
RedSky JZ Fulton Mall | HomeFed
Equity Method Investment [Roll Forward]
Equity method investment, other than temporary impairment		$ 55,600

Loans to and Investments in A_4

Loans to and Investments in Associated Companies - Jefferies Finance (Details) - USD ($)	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Investments In Associated Companies [Line Items]
Other assets	$ 2,306,520,000		$ 2,189,257,000
Payables, expense accruals and other liabilities	10,622,970,000		10,388,072,000
Jefferies Finance
Investments In Associated Companies [Line Items]
Equity commitment	750,000,000
Funded equity commitments	$ 652,400,000
Investment commitment extension	1 year
Investment commitment termination notice period	60 days
Total line of credit facility commitment under joint venture	$ 500,000,000
Termination notice	60 days
Line of credit facility, commitment of Jefferies, funded	$ 0
Line of credit facility commitment of Jefferies	$ 250,000,000
Jefferies Finance
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	50.00%
Extension period	1 year
Other assets	$ 12,400,000		24,200,000
Payables, expense accruals and other liabilities	13,700,000		$ 13,700,000
Jefferies Finance | Jefferies Group
Investments In Associated Companies [Line Items]
Interest income and unfunded commitment fees related to facility commitment	$ 600,000	$ 1,100,000

Loans to and Investments in A_5

Loans to and Investments in Associated Companies - Activity Related to Other Transactions with Jefferies Finance (Details) - Jefferies Finance - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Investments In Associated Companies [Line Items]
Origination and syndication fee revenues	$ 70.3	$ 37.7
Origination fee expenses	12.3	5.6
CLO placement fee revenues	2.4	0.4
Underwriting fees	0.5	0.3
Service fees	$ 31.5	$ 25.2

Loans to and Investments in A_6

Loans to and Investments in Associated Companies - Berkadia (Details) - USD ($)	12 Months Ended
	Dec. 31, 2009	Feb. 28, 2021
Berkadia
Investments In Associated Companies [Line Items]
Surety policy issued		$ 1,500,000,000
Reimbursement of losses incurred, maximum percentage		50.00%
Commercial paper		$ 1,470,000,000
Berkadia
Investments In Associated Companies [Line Items]
Capital contributed	$ 217,200,000
Equity method investment, ownership percentage		50.00%
Percentage of profits received from joint venture		45.00%
Reimbursement of losses incurred, maximum percentage		50.00%

Loans to and Investments in A_7

Loans to and Investments in Associated Companies - FXCM (Details) - Investment in FXCM	3 Months Ended
	Feb. 28, 2021
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	50.00%
Weighted average useful life	11 years

Loans to and Investments in A_8

Loans to and Investments in Associated Companies - Linkem (Details) - Linkem $ in Millions	Feb. 28, 2021USD ($)
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	42.00%
Percentage of total voting securities	48.00%
Shareholder loans principal outstanding	$ 103.6

Loans to and Investments in A_9

Loans to and Investments in Associated Companies - Real Estate Associated Companies (Details)	3 Months Ended
	Feb. 28, 2021
54 Madison
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	48.10%
HomeFed | Brooklyn Renaissance Plaza and Hotel | Hotel
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	25.80%
HomeFed | Brooklyn Renaissance Plaza Office | Office Building
Investments In Associated Companies [Line Items]
Equity method investment, ownership percentage	61.25%
Weighted average useful life	39 years

Intangible Assets, Net and Go_3

Intangible Assets, Net and Goodwill - Schedule of Intangible Assets, Net And Goodwill (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortizable intangibles	$ 164,299	$ 167,153
Goodwill	1,750,023	1,746,314
Total intangible assets, net and goodwill	1,914,322	1,913,467
Real estate
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	36,711	36,711
Other operations
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	3,459	3,459
Investment Banking and Capital Markets
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	1,566,853	1,563,144
Asset Management
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	143,000	143,000
Customer and other relationships
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortizable intangibles	49,344	51,285
Intangible assets, accumulated amortization	122,163	119,694
Trademarks and tradenames
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortizable intangibles	99,924	100,255
Intangible assets, accumulated amortization	29,680	28,585
Other
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortizable intangibles	7,108	7,729
Intangible assets, accumulated amortization	9,574	8,953
Exchange and clearing organization membership interests and registrations
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite lived intangibles	$ 7,923	$ 7,884

Intangible Assets, Net and Go_4

Intangible Assets, Net and Goodwill - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense on intangible assets	$ 3.6	$ 3.8

Intangible Assets, Net and Go_5

Intangible Assets, Net and Goodwill - Schedule of Estimated Future Amortization Expense (Details) $ in Thousands	Feb. 28, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of current year	$ 10,789
2022	11,134
2023	9,900
2024	9,143
2025	$ 8,632

Short-Term Borrowings - Schedul

Short-Term Borrowings - Schedule of Short-Term Borrowings (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Short-term Debt [Line Items]
Total short-term borrowings	$ 882,941	$ 764,715
Floating rate puttable notes
Short-term Debt [Line Items]
Total short-term borrowings	6,800	6,800
Equity-linked notes
Short-term Debt [Line Items]
Total short-term borrowings	0	5,067
Bank loans
Short-term Debt [Line Items]
Total short-term borrowings	$ 876,141	$ 752,848

Short-Term Borrowings - Narrati

Short-Term Borrowings - Narrative (Details) - USD ($)	3 Months Ended
	Feb. 28, 2021	Nov. 30, 2020
Short-term Debt [Line Items]
Interest rate on short-term borrowings	1.82%	1.87%
Jefferies Group Revolving Credit Facility | Federal funds effective rate
Short-term Debt [Line Items]
Basis spread on variable rate	2.00%
Jefferies Group Revolving Credit Facility | Intraday Credit Facility
Short-term Debt [Line Items]
Committed amount	$ 150,000,000
Interest rate	0.12%
Jefferies Group Revolving Credit Facility | Intraday Credit Facility | Base rate
Short-term Debt [Line Items]
Basis spread on variable rate	3.00%
Jefferies Group Revolving Credit Facility | Intraday Credit Facility | Federal funds effective rate
Short-term Debt [Line Items]
Basis spread on variable rate	0.50%

Short-Term Borrowings - Sched_2

Short-Term Borrowings - Schedule of Line of Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Nov. 30, 2020
Short-term Debt [Line Items]
Short-term borrowings	$ 882,941	$ 764,715
Jefferies Group Revolving Credit Facility | Federal funds effective rate
Short-term Debt [Line Items]
Basis spread on variable rate	2.00%
Royal Bank of Canada Credit Facility | Base rate
Short-term Debt [Line Items]
Basis spread on variable rate	2.05%
Line of credit
Short-term Debt [Line Items]
Short-term borrowings	$ 874,000	746,000
Bank of New York Mellon Master Loan Agreement | Line of credit
Short-term Debt [Line Items]
Short-term borrowings	300,000	300,000
JPMorgan Chase Bank, N.A. Credit Facility | Line of credit
Short-term Debt [Line Items]
Short-term borrowings	274,000	246,000
Royal Bank of Canada Credit Facility | Line of credit
Short-term Debt [Line Items]
Short-term borrowings	200,000	200,000
Bank of New York Mellon Credit Facility | Line of credit | Jefferies Group Revolving Credit Facility
Short-term Debt [Line Items]
Short-term borrowings	$ 100,000	$ 0

Long-Term Debt - Schedule of De

Long-Term Debt - Schedule of Debt (Details) - USD ($)	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Debt Instrument [Line Items]
Long-term debt	$ 8,243,150,000		$ 8,352,039,000
Gains (losses) recognized in interest expense of Jefferies Group	$ 3,020,000	$ (402,000)
5.50% Senior Notes due October 18, 2023
Debt Instrument [Line Items]
Interest rate	5.50%		5.50%
Principal outstanding	$ 750,000,000		$ 750,000,000
6.625% Senior Notes due October 23, 2043
Debt Instrument [Line Items]
Interest rate	6.625%		6.625%
Principal outstanding	$ 250,000,000		$ 250,000,000
2.25% Euro Medium Term Notes, due July 13, 2022
Debt Instrument [Line Items]
Interest rate	2.25%		2.25%
Principal outstanding	$ 0		$ 4,779,000
5.125% Senior Notes, due January 20, 2023
Debt Instrument [Line Items]
Interest rate	5.125%		5.125%
Principal outstanding	$ 750,000,000		$ 750,000,000
1.00% Euro Medium Term Notes, due July 19, 2024
Debt Instrument [Line Items]
Interest rate	1.00%		1.00%
Principal outstanding	$ 603,950,000		$ 597,350,000
4.85% Senior Notes, due January 15, 2027
Debt Instrument [Line Items]
Interest rate	4.85%		4.85%
Principal outstanding	$ 750,000,000		$ 750,000,000
6.45% Senior Debentures, due June 8, 2027
Debt Instrument [Line Items]
Interest rate	6.45%		6.45%
Principal outstanding	$ 350,000,000		$ 350,000,000
4.15% Senior Notes, due January 23, 2030
Debt Instrument [Line Items]
Interest rate	4.15%		4.15%
Principal outstanding	$ 1,000,000,000		$ 1,000,000,000
2.75% Senior Notes, due October 15, 2032
Debt Instrument [Line Items]
Interest rate	2.75%		2.75%
Principal outstanding	$ 500,000,000		$ 500,000,000
6.25% Senior Debentures, due January 15, 2036
Debt Instrument [Line Items]
Interest rate	6.25%		6.25%
Principal outstanding	$ 500,000,000		$ 500,000,000
6.50% Senior Notes, due January 20, 2043
Debt Instrument [Line Items]
Interest rate	6.50%		6.50%
Principal outstanding	$ 400,000,000		$ 400,000,000
Parent company
Debt Instrument [Line Items]
Long-term debt	993,058,000		992,711,000
Parent company | 5.50% Senior Notes due October 18, 2023
Debt Instrument [Line Items]
Long-term debt	746,215,000		745,883,000
Parent company | 6.625% Senior Notes due October 23, 2043
Debt Instrument [Line Items]
Long-term debt	246,843,000		246,828,000
Subsidiaries
Debt Instrument [Line Items]
Long-term debt	7,250,092,000		7,359,328,000
Subsidiaries | HomeFed EB-5 Program debt
Debt Instrument [Line Items]
Long-term debt	191,486,000		191,294,000
Subsidiaries | HomeFed construction loan
Debt Instrument [Line Items]
Long-term debt	45,949,000		45,471,000
Subsidiaries | Foursight Capital Credit Facilities | Line of credit
Debt Instrument [Line Items]
Long-term debt	0		129,000,000
Subsidiaries | Vitesse Energy Finance Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	90,949,000		97,883,000
Subsidiaries | Jefferies Group | 2.25% Euro Medium Term Notes, due July 13, 2022
Debt Instrument [Line Items]
Long-term debt	0		4,638,000
Subsidiaries | Jefferies Group | 5.125% Senior Notes, due January 20, 2023
Debt Instrument [Line Items]
Long-term debt	758,792,000		759,901,000
Subsidiaries | Jefferies Group | 1.00% Euro Medium Term Notes, due July 19, 2024
Debt Instrument [Line Items]
Long-term debt	602,401,000		595,700,000
Subsidiaries | Jefferies Group | 4.85% Senior Notes, due January 15, 2027
Debt Instrument [Line Items]
Long-term debt	790,942,000		809,039,000
Subsidiaries | Jefferies Group | 6.45% Senior Debentures, due June 8, 2027
Debt Instrument [Line Items]
Long-term debt	368,445,000		369,057,000
Subsidiaries | Jefferies Group | 4.15% Senior Notes, due January 23, 2030
Debt Instrument [Line Items]
Long-term debt	989,807,000		989,574,000
Subsidiaries | Jefferies Group | 2.75% Senior Notes, due October 15, 2032
Debt Instrument [Line Items]
Long-term debt	456,828,000		485,134,000
Subsidiaries | Jefferies Group | 6.25% Senior Debentures, due January 15, 2036
Debt Instrument [Line Items]
Long-term debt	510,724,000		510,834,000
Subsidiaries | Jefferies Group | 6.50% Senior Notes, due January 20, 2043
Debt Instrument [Line Items]
Long-term debt	419,719,000		419,826,000
Subsidiaries | Jefferies Group | Structured Notes
Debt Instrument [Line Items]
Long-term debt	1,784,157,000		1,712,245,000
Subsidiaries | Jefferies Group | Jefferies Group Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	189,893,000		189,732,000
Subsidiaries | Jefferies Group | Jefferies Group Secured Bank Loan
Debt Instrument [Line Items]
Long-term debt	50,000,000		$ 50,000,000
Subsidiaries | Interest rate swaps | 4.85% Senior Notes, due January 15, 2027 and 2.75% Senior Notes, due October 15, 2032
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense of Jefferies Group	$ 46,800,000	$ 24,900,000

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details)	3 Months Ended
	Feb. 28, 2021USD ($)contract	Mar. 01, 2021USD ($)	Nov. 30, 2020USD ($)
Structured notes | Jefferies Group
Debt Instrument [Line Items]
Debt issued during period, principal amount, net of retirements	$ 54,100,000
Jefferies Group Revolving Credit Facility | Jefferies Group
Debt Instrument [Line Items]
Borrowings under credit facility	189,900,000
Bank loan obligations | Jefferies Group
Debt Instrument [Line Items]
Debt principal amount	50,000,000
HomeFed construction loan | HomeFed
Debt Instrument [Line Items]
Construction loan, maximum borrowing amount	58,900,000
Long-term debt	46,600,000		$ 46,200,000
HomeFed construction loan | HomeFed | Subsequent event
Debt Instrument [Line Items]
Construction loan, maximum borrowing amount		$ 50,000,000
Vitesse Energy Finance Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	91,500,000		98,500,000
Maximum borrowing capacity	$ 120,000,000
Vitesse Energy Finance Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Percentage of proved reserve value of oil and gas properties	85.00%
LIBOR | Bank loan obligations | Jefferies Group
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
LIBOR | HomeFed construction loan | HomeFed
Debt Instrument [Line Items]
Basis spread on variable rate	3.15%
LIBOR | Vitesse Energy Finance Revolving Credit Facility | Vitesse Energy Finance | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%
LIBOR | Vitesse Energy Finance Revolving Credit Facility | Vitesse Energy Finance | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	3.50%
Line of Credit | Foursight Capital Credit Facilities
Debt Instrument [Line Items]
Long-term debt	$ 0		$ 129,300,000
Line of Credit | Foursight Capital Credit Facilities | Foursight Capital
Debt Instrument [Line Items]
Number of warehouse credit commitments | contract	2
Maximum borrowing capacity	$ 175,000,000

Mezzanine Equity (Details)

Mezzanine Equity (Details) - USD ($)	3 Months Ended
	Feb. 28, 2021	Nov. 30, 2020	Feb. 29, 2020
Purchase Requirement [Line Items]
Redeemable noncontrolling interests	$ 31,000,000	$ 24,700,000
Mandatorily redeemable convertible preferred shares redemption value	$ 125,000,000	$ 125,000,000
Dividends per common share (in dollars per share)	$ 0.20	$ 0.15
Increase of preferred stock dividend	$ 1,626,000		$ 1,422,000
Cumulative convertible preferred shares
Purchase Requirement [Line Items]
Callable preferred shares (in shares)	125,000
Mandatorily redeemable preferred shares callable price per share (in dollars per share)	$ 1,000
Mandatorily redeemable convertible preferred shares redemption value	$ 125,000,000
Dividend rate on preferred stock	3.25%
Minimum dividend considered for additional quarterly payments (in dollars per share)	$ 0.0625
Mandatorily redeemable preferred stock, number of shares in conversion (in shares)	4,440,863
Mandatorily redeemable preferred stock, effective conversion price per share (in dollars per share)	$ 28.15
Increase of preferred stock dividend	$ 1,600,000		$ 1,400,000
Preferred stock, effective dividend rate, percentage	5.20%

Compensation Plans (Details)

Compensation Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation and benefits	$ 1,172,543	$ 670,193
Stock-based compensation	20,678	9,947
Tax benefit for issuance of share-based awards	5,100	$ 2,600
Total unrecognized compensation costs related to nonvested share-based compensation plans	$ 37,100
Total unrecognized compensation costs related to nonvested share-based compensation plans, period for recognition	1 year 8 months 12 days
Other shares issuable (in shares)	1,104,000
Potential maximum increase to common shares outstanding from restricted stock and other shares (in shares)	28,048,000
Restricted cash awards, cost expected to be recognized	$ 423,000
Restricted cash awards, cost expected to be recognized, period	3 years
Cumulative convertible preferred shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Mandatorily redeemable preferred stock, number of shares in conversion (in shares)	4,440,863
Mandatorily redeemable preferred stock, effective conversion price per share (in dollars per share)	$ 28.15
Sign-on and retention awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for award granted	4 years
Award amortization period	4 years
Stock options and SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation and benefits	$ 46,400
Restricted stock with future service required
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (in shares)	1,414,000
Restricted stock units with future service required
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (in shares)	2,862,000
Restricted stock units with no future service required
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (in shares)	16,850,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)	2,791,000
Share-based Payment Arrangement, Expense	$ 12,900
Stock appreciation rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 33,500

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Summary of Accumulated Other Comprehensive Income (Loss), Net of Taxes (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020	Feb. 29, 2020	Nov. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	$ 9,778,358	$ 9,438,525	$ 9,385,905	$ 9,601,684
Net unrealized gains on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	453	513
Net unrealized foreign exchange losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	(145,635)	(156,718)
Net unrealized losses on instrument specific credit risk
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	(140,587)	(71,151)
Net minimum pension liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	(60,775)	(61,561)
AOCI including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity	$ (346,544)	$ (288,917)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) Reclassification (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	$ 2,703,588	$ 1,692,264
Selling, general and other expenses	(271,937)	(297,838)
Net unrealized losses on instrument specific credit risk
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification for the period, tax	71	86
Amortization of defined benefit pension plan actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification for the period, tax	(261)	(224)
Principal transactions
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	919,901	404,864
Amount Reclassified from  Accumulated Other  Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period, net of tax	(564)	(387)
Amount Reclassified from  Accumulated Other  Comprehensive Income (Loss) | Amortization of defined benefit pension plan actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and other expenses	(786)	(639)
Amount Reclassified from  Accumulated Other  Comprehensive Income (Loss) | Principal transactions | Net unrealized losses on instrument specific credit risk
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	$ 222	$ 252

Revenues from Contracts with _3

Revenues from Contracts with Customers - Schedule of Components of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 1,432,643	$ 912,816
Other sources of revenue	1,270,945	779,448
Total revenues	2,703,588	1,692,264
Commissions and other fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	236,769	179,430
Total revenues	236,769	179,430
Investment banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,003,612	592,002
Total revenues	1,003,612	592,002
Manufacturing revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	137,847	77,607
Total revenues	137,847	77,607
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	54,415	63,777
Principal transactions
Disaggregation of Revenue [Line Items]
Other sources of revenue	919,901	404,864
Total revenues	919,901	404,864
Interest income
Disaggregation of Revenue [Line Items]
Other sources of revenue	240,497	326,366
Total revenues	240,497	326,366
Other
Disaggregation of Revenue [Line Items]
Other sources of revenue	$ 110,547	$ 48,218

Revenues from Contracts with _4

Revenues from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 1,432,643	$ 912,816
Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,218,132	786,311
Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	164,435	83,321
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	50,076	43,184
Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,240,600	771,537
Reportable Segments | Investment Banking and Capital Markets | Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,026,916	649,069
Reportable Segments | Investment Banking and Capital Markets | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	163,737	79,438
Reportable Segments | Investment Banking and Capital Markets | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	49,947	43,030
Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	7,426	6,091
Reportable Segments | Asset Management | Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	7,097	2,568
Reportable Segments | Asset Management | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	329	3,523
Reportable Segments | Asset Management | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	184,836	135,293
Reportable Segments | Merchant Banking | Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	184,338	134,779
Reportable Segments | Merchant Banking | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	369	360
Reportable Segments | Merchant Banking | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	129	154
Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Reportable Segments | Corporate | Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Reportable Segments | Corporate | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Reportable Segments | Corporate | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(219)	(105)
Consolidation Adjustments | Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(219)	(105)
Consolidation Adjustments | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Consolidation Adjustments | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Advisory
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	692,173	248,844
Investment Banking - Advisory | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	692,223	248,844
Investment Banking - Advisory | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Advisory | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Advisory | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Advisory | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(50)	0
Investment Banking - Underwriting
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	311,439	343,158
Investment Banking - Underwriting | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	311,439	343,158
Investment Banking - Underwriting | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Underwriting | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Underwriting | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment Banking - Underwriting | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Equities
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	233,370	176,144
Equities | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	233,539	176,249
Equities | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Equities | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Equities | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Equities | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(169)	(105)
Fixed Income
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,399	3,286
Fixed Income | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,399	3,286
Fixed Income | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fixed Income | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fixed Income | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fixed Income | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	7,426	6,091
Asset Management | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Asset Management | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	7,426	6,091
Asset Management | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Asset Management | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Asset Management | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Manufacturing revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	137,847	77,607
Manufacturing revenues | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Manufacturing revenues | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Manufacturing revenues | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	137,847	77,607
Manufacturing revenues | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Manufacturing revenues | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Oil and gas revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	32,009	42,214
Oil and gas revenues | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Oil and gas revenues | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Oil and gas revenues | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	32,009	42,214
Oil and gas revenues | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Oil and gas revenues | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14,980	15,472
Other revenues | Reportable Segments | Investment Banking and Capital Markets
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Other revenues | Reportable Segments | Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Other revenues | Reportable Segments | Merchant Banking
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14,980	15,472
Other revenues | Reportable Segments | Corporate
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Other revenues | Consolidation Adjustments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0

Revenues from Contracts with _5

Revenues from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue related to performance obligation satisfied	$ 8.2	$ 6.4
Revenue associated with distribution services, a portion of which related to prior period	2.9	5.6
Receivables related to revenue from contracts with customers	367		$ 332.5
Deferred revenue	15.9		14.8
Deferred revenue, revenue recognized	6.9	5.6
Capitalized contract cost	1.3		$ 1.8
Expenses related to capitalized costs to fulfill a contract	$ 1.2	$ 1.9

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Income Taxes [Line Items]
Unrecognized tax benefits	$ 431,700		$ 401,400
Interest included in unrecognized tax benefits	92,200		87,100
Net deferred tax asset	410,400		393,700
Income tax provision	$ 218,236	$ 45,773
Effective income tax rate	27.30%	29.00%
Jefferies Group
Income Taxes [Line Items]
Unrecognized tax benefits	$ 258,900		$ 234,000

Common Share and Earnings Per_3

Common Share and Earnings Per Common Share (Earnings Per Share Computation) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Numerator for earnings per share:
Net income attributable to Jefferies Financial Group Inc. common shareholders	$ 582,435	$ 113,010
Allocation of earnings to participating securities	(3,216)	(695)
Net income attributable to Jefferies Financial Group Inc. common shareholders for basic earnings per share	579,219	112,315
Adjustment to allocation of earnings to participating securities related to diluted shares	42	(3)
Mandatorily redeemable convertible preferred share dividends	1,626	1,422
Net income attributable to Jefferies Financial Group Inc. common shareholders for diluted earnings per share	$ 580,887	$ 113,734
Denominator for earnings per share:
Weighted average common shares outstanding (in shares)	249,352	286,682
Denominator for basic earnings per share – weighted average shares (in shares)	266,386	302,406
Mandatorily redeemable convertible preferred shares (in shares)	4,441	4,441
Denominator for diluted earnings per share (in shares)	272,881	308,280
Weighted average shares of participating securities (in shares)	1,482	1,902
Restricted stock with future service required
Denominator for earnings per share:
Weighted average shares of restricted stock outstanding with future service required (in shares)	(1,461)	(1,892)
Restricted stock units with no future service required
Denominator for earnings per share:
Weighted average RSUs outstanding with no future service required (in shares)	18,495	17,616
Stock options
Denominator for earnings per share:
Dilutive effect of share-based payment awards (in shares)	208	10
Restricted stock units | Senior executive compensation plan awards
Denominator for earnings per share:
Dilutive effect of share-based payment awards (in shares)	1,846	1,423

Common Share and Earnings Per_4

Common Share and Earnings Per Common Share (Narrative) (Details) - USD ($)	3 Months Ended
	Feb. 28, 2021	Mar. 31, 2021	Jan. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 31, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share repurchase program, authorized amount						$ 100,000,000	$ 250,000,000
Increase in share repurchase authorization			$ 192,800,000	$ 128,000,000	$ 176,700,000
Stock repurchased during period (in shares)	5,000,000
Stock repurchased during period	$ 127,500,000
Average repurchase price per share (in dollars per share)	$ 25.51
Remaining authorized repurchase amount	$ 122,500,000
Subsequent event
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share repurchase program, authorized amount		$ 250,000,000

Commitments, Contingencies an_3

Commitments, Contingencies and Guarantees - Commitments and Contingencies (Details) $ in Millions	3 Months Ended
	Feb. 28, 2021USD ($)
Guarantor Obligations [Line Items]
2021	$ 10,064
2022	629.7
2023 and 2024	194.9
2025 and 2026	12.9
2027 and Later	23.5
Maximum Payout	$ 10,925
Guarantor obligation settled period	3 days
Equity commitments
Guarantor Obligations [Line Items]
2021	$ 316.2
2022	151
2023 and 2024	25.4
2025 and 2026	10.9
2027 and Later	23.5
Maximum Payout	527
Loan commitments
Guarantor Obligations [Line Items]
2021	57.5
2022	260
2023 and 2024	25
2025 and 2026	2
2027 and Later	0
Maximum Payout	344.5
Underwriting commitments
Guarantor Obligations [Line Items]
2021	224
2022	0
2023 and 2024	0
2025 and 2026	0
2027 and Later	0
Maximum Payout	224
Forward starting reverse repos
Guarantor Obligations [Line Items]
2021	5,703.8
2022	193.7
2023 and 2024	4.2
2025 and 2026	0
2027 and Later	0
Maximum Payout	5,901.7
Forward starting repos
Guarantor Obligations [Line Items]
2021	3,627.2
2022	0
2023 and 2024	4.2
2025 and 2026	0
2027 and Later	0
Maximum Payout	3,631.4
Other unfunded commitments
Guarantor Obligations [Line Items]
2021	135.3
2022	25
2023 and 2024	136.1
2025 and 2026	0
2027 and Later	0
Maximum Payout	296.4
Forward starting securities purchased under agreements to resell settled
Guarantor Obligations [Line Items]
Maximum Payout	5,894.4
Forward starting securities sold under agreements to repurchase settled
Guarantor Obligations [Line Items]
Maximum Payout	$ 3,631.4

Commitments, Contingencies an_4

Commitments, Contingencies and Guarantees - Narrative (Details)	3 Months Ended
	Feb. 28, 2021USD ($)
Loss Contingencies [Line Items]
Fair value of derivative contracts meeting the definition of a guarantee	$ 305,300,000
Standby letters of credit
Loss Contingencies [Line Items]
Letters of credit	$ 22,000,000
Expiration period maximum	1 year
Jefferies Finance
Loss Contingencies [Line Items]
Line of credit commitment to associated companies, funded portion	$ 0
Line of credit facility commitment of Jefferies	$ 250,000,000
Berkadia
Loss Contingencies [Line Items]
Reimbursement of losses incurred, maximum percentage	50.00%
Surety policy issued	$ 1,500,000,000
Aggregate amount of commercial paper outstanding	1,470,000,000
HomeFed
Loss Contingencies [Line Items]
Aggregate amount of infrastructure improvement bonds outstanding	71,300,000
Jefferies Capital Partners LLC and its private equity funds
Loss Contingencies [Line Items]
Equity commitments	10,800,000
Other Investments
Loss Contingencies [Line Items]
Equity commitments	218,500,000
Third parties with strategic relationships
Loss Contingencies [Line Items]
Equity commitments	200,000,000
Outstanding loan commitments	5,900,000
Clients
Loss Contingencies [Line Items]
Outstanding loan commitments	$ 80,000,000

Commitments, Contingencies an_5

Commitments, Contingencies and Guarantees - Guarantees (Details) - Derivative notional amount $ in Millions	Feb. 28, 2021USD ($)
Derivative contracts – non-credit related
Guarantor Obligations [Line Items]
2021	$ 11,232.2
2022	2,940.1
2023 and 2024	8,807.2
2025 and 2026	394.1
2027 and Later	12.1
Notional/ Maximum Payout	23,385.7
Written derivative contracts – credit related
Guarantor Obligations [Line Items]
2021	0
2022	0
2023 and 2024	6.4
2025 and 2026	87.2
2027 and Later	0
Notional/ Maximum Payout	93.6
Total derivative contracts
Guarantor Obligations [Line Items]
2021	11,232.2
2022	2,940.1
2023 and 2024	8,813.6
2025 and 2026	481.3
2027 and Later	12.1
Notional/ Maximum Payout	$ 23,479.3

Net Capital Requirements (Detai

Net Capital Requirements (Details) - Jefferies LLC $ in Millions	Feb. 28, 2021USD ($)
Net Capital Requirements [Line Items]
Net capital	$ 2,019.3
Excess net capital	$ 1,902.9

Other Fair Value Information (D

Other Fair Value Information (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term borrowings	$ 882,941	$ 764,715
Long-term debt	8,243,150	8,352,039
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes and loans receivable	748,642	727,492
Short-term borrowings	882,941	759,648
Long-term debt	6,458,993	6,639,794
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes and loans receivable	771,136	744,424
Short-term borrowings	882,941	759,648
Long-term debt	$ 7,282,248	$ 7,495,642

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Private Equity Related Funds
Related Party Transaction [Line Items]
Loans to and/or equity investments in related funds	$ 18.7		$ 19
JCP Fund V
Related Party Transaction [Line Items]
Net gains (losses) from private equity related funds	(0.5)	$ 1.5
Officers and employees
Related Party Transaction [Line Items]
Loans outstanding to related party	37.7		38.9
Berkadia | Affiliated entity | Jefferies Group
Related Party Transaction [Line Items]
Purchase commitment	580.1		401
Payables, expense accruals and other liabilities | FXCM | Affiliated entity | Jefferies Group
Related Party Transaction [Line Items]
OTC foreign exchange contracts	$ 0.1		$ 2.7

Segment Information - Schedule

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Segment Reporting Information [Line Items]
Total consolidated revenues		$ 2,486,942	$ 1,386,328
Total consolidated income before income taxes		800,785	157,794
Total consolidated depreciation and amortization expenses		38,767	39,470
Total consolidated assets	[1]	56,868,919		$ 53,118,352
Parent Company interest
Segment Reporting Information [Line Items]
Total consolidated income before income taxes		(13,902)	(12,781)
Reportable Segments
Segment Reporting Information [Line Items]
Total consolidated revenues		2,484,336	1,383,509
Total consolidated income before income taxes		811,888	167,651
Total consolidated assets		57,410,717		53,417,948
Reportable Segments | Investment Banking and Capital Markets
Segment Reporting Information [Line Items]
Total consolidated revenues		1,959,509	1,148,829
Total consolidated income before income taxes		543,283	249,957
Total consolidated depreciation and amortization expenses		20,684	19,116
Total consolidated assets		49,021,457		44,835,126
Reportable Segments | Asset Management
Segment Reporting Information [Line Items]
Total consolidated revenues		226,734	20,329
Total consolidated income before income taxes		181,465	(20,929)
Total consolidated depreciation and amortization expenses		479	625
Total consolidated assets		2,713,231		3,231,059
Reportable Segments | Merchant Banking
Segment Reporting Information [Line Items]
Total consolidated revenues		297,503	204,559
Total consolidated income before income taxes		107,617	(53,623)
Total consolidated depreciation and amortization expenses		16,740	18,841
Total consolidated assets		3,276,351		3,173,064
Reportable Segments | Corporate
Segment Reporting Information [Line Items]
Total consolidated revenues		590	9,792
Total consolidated income before income taxes		(20,477)	(7,754)
Total consolidated depreciation and amortization expenses		864	888
Total consolidated assets		2,399,678		2,178,699
Consolidation adjustments
Segment Reporting Information [Line Items]
Total consolidated revenues		2,606	2,819
Total consolidated income before income taxes		2,799	$ 2,924
Total consolidated assets		$ (541,798)		$ (299,596)
[1]	Total assets include assets related to variable interest entities of $747.1 million and $566.1 million at February 28, 2021 and November 30, 2020, respectively, and Total liabilities include liabilities related to variable interest entities of $4,517.9 million and $3,291.3 million at February 28, 2021 and November 30, 2020, respectively. See Note 7 for additional information related to variable interest entities.

Segment Information - Narrative

Segment Information - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Segment Reporting Information [Line Items]
Interest expense	$ 20,367	$ 21,554
Reportable Segments | Merchant Banking
Segment Reporting Information [Line Items]
Interest expense	6,500	8,800
Parent Company interest
Segment Reporting Information [Line Items]
Interest expense	$ 13,900	$ 12,800