Investments - Summary of Selected Financial Information For Real Estate Investments (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	May 31, 2023	May 31, 2022		May 31, 2023	May 31, 2022		Nov. 30, 2022
Schedule of Equity Method Investments [Line Items]
Assets	$ 53,740,010			$ 53,740,010			$ 51,057,683
Liabilities	43,974,354			43,974,354			40,630,743
Net earnings (losses)	8,684	$ 116,858	[1]	138,008	$ 444,833	[1]
Real Estate Investments
Schedule of Equity Method Investments [Line Items]
Assets	227,400			227,400			350,400
Liabilities	400,400			400,400			487,500
Net earnings (losses)	(3,400)	(6,100)		(2,300)	500
Real Estate Investments
Schedule of Equity Method Investments [Line Items]
Our total equity balance	92,900			92,900			$ 107,300
Distributions	$ 0	$ 200		$ 17,100	$ 200

[1] See Note 1 for a description of financial statement presentation changes made as a result of our Merger with Jefferies Group.