Securitization Activities - Schedule of Financial Instruments Owned (Details) - USD ($) $ in Thousands	Feb. 28, 2026	Nov. 30, 2025
Schedule Of Securitization Vehicles [Line Items]
Financial instruments owned	$ 28,079,458	$ 27,722,739
Other secured financings	2,285,995	2,885,878
Securitization Activity
Schedule Of Securitization Vehicles [Line Items]
Financial instruments owned	0	456,100
Other secured financings	$ 0	$ 456,100

The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 940
-SubTopic 320
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479035/940-320-45-2

Name:	us-gaap_FinancialInstrumentsOwnedAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant