Variable Interest Entities - Additional Information (Details) - USD ($) $ in Thousands	Feb. 29, 2024	Nov. 30, 2023
Variable Interest Entity [Line Items]
Carrying amount	$ 60,933,000	$ 57,905,161
Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	2,582,400	2,649,300
Related party private equity vehicles | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	2,800	3,100
Other investment vehicles
Variable Interest Entity [Line Items]
Equity investments	1,260,000
Funded equity commitments	1,100,000
Carrying amount of equity investment	1,060,000	1,070,000
Other investment vehicles | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	1,059,100	1,071,200
Agency mortgage-backed securities | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	1,170,000	1,890,000
Non-agency mortgage and other asset-backed securities | Nonconsolidated VIEs
Variable Interest Entity [Line Items]
Carrying amount	173,400	261,200
JCP Entities | Related party private equity vehicles
Variable Interest Entity [Line Items]
Equity investments	133,000	133,000
Funded equity commitments	123,100	122,600
Carrying amount of equity investment	$ 2,800	$ 3,100