Investments - Summary of Selected Financial Information for Berkadia (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Nov. 30, 2021
Schedule of Equity Method Investments [Line Items]
Net earnings	$ 341,143	$ 493,865
Berkadia
Schedule of Equity Method Investments [Line Items]
Our total equity balance	412,300		$ 373,400
Distributions	200	300
Berkadia | Equity method investment, nonconsolidated investee or group of investees
Schedule of Equity Method Investments [Line Items]
Net earnings	$ 86,400	$ 66,700