Credit Losses on Financial Assets Measured at Amortized Cost - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Bad debt expense, net of reversals	$ 4,141	$ 2,287	$ 19,582
Prime Brokerage
Financing Receivable, Allowance for Credit Loss [Line Items]
Bad debt expense, net of reversals		39,000
Automobile Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, balance	$ 891,100	$ 812,600
Historical loss experience period	8 years
Supportable forecast period	2 years