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Investments - Other Asset Management Companies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 29, 2024	Aug. 31, 2024	Nov. 30, 2023
Monashee
Schedule of Equity Method Investments [Line Items]
Our total equity balance		$ 21.9	$ 15.8
Ownership percentage			50.00%
Percentage of profits received from joint venture			47.50%
Gain upon nonmonetary exchange	$ 6.0
Payments to acquire investments	$ 5.2
Monashee's Separate Managed Accounts
Schedule of Equity Method Investments [Line Items]
Our total equity balance			$ 20.2

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