Variable Interest Entities - Narrative (Details) - USD ($) $ in Thousands		May 31, 2022	Nov. 30, 2021	May 31, 2021	Nov. 30, 2020
Variable Interest Entity [Line Items]
Assets	[1]	$ 57,213,810	$ 60,404,110
Investment in associated company		1,803,542	1,745,790	$ 1,728,115	$ 1,686,563
Other investment vehicles
Variable Interest Entity [Line Items]
Carrying amount of equity investment		1,390,000	1,110,000
Unfunded equity commitments related to investments		102,300	90,000
JCP entities | Related party private equity vehicles
Variable Interest Entity [Line Items]
Equity commitments		133,000	133,000
Funded equity commitments		122,300	122,300
Carrying amount of equity investment		28,400	27,100
VIE, not primary beneficiary
Variable Interest Entity [Line Items]
Assets		2,261,200	2,002,700
Reported total assets		28,796,200	28,932,400
VIE, not primary beneficiary | Investment in FXCM
Variable Interest Entity [Line Items]
Reported total assets		398,800
Fair value of senior secured term loan receivable		51,900
Investment in associated company		51,200
VIE, not primary beneficiary | Related party private equity vehicles
Variable Interest Entity [Line Items]
Assets		28,400	27,100
Reported total assets		81,700	78,900
VIE, not primary beneficiary | Other investment vehicles
Variable Interest Entity [Line Items]
Assets		1,392,400	1,111,500
Reported total assets		15,888,700	15,101,400
VIE, not primary beneficiary | Agency mortgage-backed securities
Variable Interest Entity [Line Items]
Assets		1,580,000	1,310,000
VIE, not primary beneficiary | Non agency mortgage- and asset-backed securities
Variable Interest Entity [Line Items]
Assets		$ 205,800	$ 253,900

[1] Total assets include assets related to variable interest entities of $854.8 million and $1.05 billion at May 31, 2022 and November 30, 2021, respectively, Total liabilities include liabilities related to variable interest entities of $2.68 billion and $4.64 billion at May 31, 2022 and November 30, 2021, respectively, and Noncontrolling interests include noncontrolling interests related to variable interest entities of $34.6 million at May 31, 2022. See Note 7 for additional information related to variable interest entities.