Investments - Summary of Selected Financial Information for Berkadia (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2023	Feb. 28, 2022		Nov. 30, 2022
Schedule of Equity Method Investments [Line Items]
Assets	$ 52,032,943			$ 51,057,683
Liabilities	42,219,712			40,630,743
Noncontrolling interests	56,185			62,633
Net earnings	129,324	$ 327,975	[1]
Berkadia
Schedule of Equity Method Investments [Line Items]
Our total equity balance	418,800			425,900
Berkadia
Schedule of Equity Method Investments [Line Items]
Assets	4,569,000			4,436,000
Liabilities	2,984,400			2,801,700
Noncontrolling interests	655,000			$ 690,100
Net earnings	$ 29,000	$ 86,400

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