Collateralized Transactions - Collateral Pledged (Details) - USD ($) $ in Thousands	May 31, 2023	Nov. 30, 2022
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	$ 1,221,523	$ 1,366,025
Repurchase Agreements	16,881,617	13,603,033
Obligation to Return Securities Received as Collateral, at Fair Value	9,486	100,362
Total	18,112,626	15,069,420
Corporate equity securities
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	651,481	967,800
Repurchase Agreements	504,289	471,581
Obligation to Return Securities Received as Collateral, at Fair Value	1,654	0
Total	1,157,424	1,439,381
Corporate debt securities
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	526,227	332,204
Repurchase Agreements	3,086,166	2,210,934
Obligation to Return Securities Received as Collateral, at Fair Value	0	0
Total	3,612,393	2,543,138
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	1,661,050	1,192,265
Obligation to Return Securities Received as Collateral, at Fair Value	0	0
Total	1,661,050	1,192,265
U.S. government and federal agency securities
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	33,718	66,021
Repurchase Agreements	7,868,077	6,203,263
Obligation to Return Securities Received as Collateral, at Fair Value	7,832	100,362
Total	7,909,627	6,369,646
Municipal securities
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	0	0
Repurchase Agreements	330,501	535,619
Obligation to Return Securities Received as Collateral, at Fair Value	0	0
Total	330,501	535,619
Sovereign obligations
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	10,097	0
Repurchase Agreements	2,430,427	2,450,880
Obligation to Return Securities Received as Collateral, at Fair Value	0	0
Total	2,440,524	2,450,880
Loans and other receivables
Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items]
Securities Lending Arrangements	0	0
Repurchase Agreements	1,001,107	538,491
Obligation to Return Securities Received as Collateral, at Fair Value	0	0
Total	$ 1,001,107	$ 538,491

Amount, after effect of master netting arrangement and deduction of obligation to return financial collateral not offset and financial instrument subject to master netting arrangement not offset, of derivative liability, security sold under agreement to repurchase, and security loaned. Includes liability not subject to master netting arrangement or similar agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 13
-SubTopic 20
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483444/210-20-55-13

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Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral and funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial assets at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and financial assets transferred other than securities that qualify as secured borrowings.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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