Credit Losses on Financial Assets Measured at Amortized Cost - Schedule of Allowance for Credit Loss - Investing Banking (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Credit Loss [Abstract]
Beginning balance	$ 2,868	$ 2,069	$ 6,306	$ 5,914
Bad debt expense	1,059	1,827	3,146	3,574
Charge-offs	(1)	(39)	(2,720)	(3,106)
Recoveries collected	(197)	(111)	(3,003)	(2,636)
Ending balance	$ 3,729	$ 3,746	$ 3,729	$ 3,746