Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Indefinite-lived Intangible Assets [Line Items]
Impairment losses	$ (66)	$ (768)
Accumulated amortization - finite lived intangible assets	(116,223)	(104,361)
Total gross costs - intangible assets	262,472	263,572
Total net carrying amount - intangible assets	146,183	158,443
Exchange and clearing organization membership interests and registrations
Indefinite-lived Intangible Assets [Line Items]
Impairment losses	(66)	(468)
Gross costs - indefinite lived intangible assets	7,798	8,352
Net carrying amount - indefinite lived intangible assets	7,732	7,884
Customer relationships
Indefinite-lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets	125,921	126,106
Impairment losses	0	(26)
Accumulated amortization - finite lived intangible assets	(83,979)	(75,776)
Net carrying amount - finite lived intangible assets	$ 41,942	$ 50,304
Useful life - finite lived intangible assets	9 years	9 years 4 months 24 days
Trade name
Indefinite-lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets	$ 128,753	$ 129,114
Impairment losses	0	(274)
Accumulated amortization - finite lived intangible assets	(32,244)	(28,585)
Net carrying amount - finite lived intangible assets	$ 96,509	$ 100,255
Useful life - finite lived intangible assets	26 years 3 months 18 days	27 years 3 months 18 days