Variable Interest Entities - Additional Information (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Nov. 30, 2021
Variable Interest Entity [Line Items]
Carrying amount	$ 55,899,398	$ 54,768,900
Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	2,602,900	1,798,800
Related party private equity vehicles | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	26,200	27,100
Other investment vehicles
Variable Interest Entity [Line Items]
Equity investments	1,070,000	760,000
Funded equity commitments	976,000	759,100
Carrying amount of equity investment	1,240,000	907,600
Other investment vehicles | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	1,239,800	907,600
Agency mortgage-backed securities | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	1,050,000	1,310,000
Non-agency mortgage and other asset-backed securities | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	207,000	253,900
JCP Entities | Related party private equity vehicles
Variable Interest Entity [Line Items]
Equity investments	133,000	133,000
Funded equity commitments	122,300
Carrying amount of equity investment	$ 26,200	$ 27,100