Investments - Summary of Selected Financial information for Other Asset Management Companies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Schedule of Equity Method Investments [Line Items]
Revenues	$ 2,595,589	$ 2,040,915	$ 7,663,827	$ 5,472,661
Brokerage and clearing fees	101,119	91,226	321,325	268,292
Monashee's Separate Managed Accounts
Schedule of Equity Method Investments [Line Items]
Brokerage and clearing fees		200		600
Principal transactions
Schedule of Equity Method Investments [Line Items]
Revenues	$ 324,501	353,373	$ 1,381,432	1,171,578
Principal transactions | Monashee's Separate Managed Accounts
Schedule of Equity Method Investments [Line Items]
Revenues		$ 700		$ 400