Variable Interest Entities - Non-consolidated VIEs - Additional Information (Details) - USD ($) $ in Thousands	Nov. 30, 2021	Nov. 30, 2020
Variable Interest Entity [Line Items]
Total assets	$ 54,768,900	$ 47,751,997
Other investment vehicles
Variable Interest Entity [Line Items]
Equity commitments amount	760,000	749,300
Funded equity commitments	759,100	748,100
Carrying amount of equity investment	907,600	739,700
Agency mortgage-backed securities | Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Total assets	1,310,000	1,570,000
Non-agency mortgage and other asset-backed securities | Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Total assets	253,900	252,000
JCP Entities | Related party private equity vehicles
Variable Interest Entity [Line Items]
Equity commitments amount	133,000
Funded equity commitments	122,300	122,000
Carrying amount of equity investment	$ 27,100	$ 19,000