Credit Losses on Financial Assets Measured at Amortized Cost - Schedule of Allowance for Credit Loss - Investing Banking (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts receivable, allowance for credit loss, beginning balance	$ 4,824	$ 19,788	$ 6,817
Bad debt expense, net of reversals	4,141	2,287	19,582
Charge-offs	(910)	(6,409)	(2,083)
Recoveries collected	(2,141)	(7,248)	(4,528)
Accounts receivable, allowance for credit loss, ending balance	5,914	4,824	19,788
Adjustment for change in accounting principle for current expected credit losses
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts receivable, allowance for credit loss, beginning balance	$ 0	(3,594)	0
Accounts receivable, allowance for credit loss, ending balance		$ 0	$ (3,594)