Investments - Summary of Selected Financial Information for Berkadia (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023	Nov. 30, 2023
Schedule of Equity Method Investments [Line Items]
Total assets	$ 63,275,098		$ 63,275,098		$ 57,905,161
Total liabilities	53,159,331		53,159,331		48,102,620
Total noncontrolling interest	69,415		69,415		92,308
Net earnings attributable to members	181,039	$ 53,947	492,118	$ 191,955
Berkadia
Schedule of Equity Method Investments [Line Items]
Our total equity balance	421,800		421,800		400,900
Distributions	28,000	33,600	34,700	33,800
Transaction referral fee revenue	0	0	300	0
Loan origination fees paid	0	0	400	0
Berkadia
Schedule of Equity Method Investments [Line Items]
Total assets	4,662,500		4,662,500		5,318,200
Total liabilities	3,189,700		3,189,700		3,816,100
Total noncontrolling interest	540,100		540,100		$ 612,800
Net earnings attributable to members	$ 41,400	$ 53,900	$ 119,600	$ 96,400