Investments - Activity Related to these Separately Managed Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Schedule of Equity Method Investments [Line Items]
Investment losses	$ 10,515,069	$ 7,441,399	$ 7,149,263
Management fees	432,721	366,702	347,805
Monashee's Separate Managed Accounts
Schedule of Equity Method Investments [Line Items]
Management fees		800	700
Principal transactions
Schedule of Equity Method Investments [Line Items]
Investment losses	$ 1,816,963	1,413,283	833,757
Principal transactions | Monashee's Separate Managed Accounts
Schedule of Equity Method Investments [Line Items]
Investment losses		$ (100)	$ (3,200)