Goodwill and Other Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 29, 2016	Nov. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Total gross costs - intangible assets	$ 268,357	$ 270,852
Disposals	(1,299)
Accumulated amortization - finite lived intangible assets	(47,649)	(45,069)
Total net carrying amount - intangible assets	219,409	225,783
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets	126,672	127,667
Accumulated amortization - finite lived intangible assets	(36,520)	(34,754)
Net carrying amount - finite lived intangible assets	$ 90,152	$ 92,913
Weighted average remaining lives (years)	12 years 8 months 4 days	12 years 10 months 23 days
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets	$ 129,836	$ 131,288
Accumulated amortization - finite lived intangible assets	(11,129)	(10,315)
Net carrying amount - finite lived intangible assets	$ 118,707	$ 120,973
Weighted average remaining lives (years)	32 years 7 days	32 years 3 months 18 days
Exchange and Clearing Organization Membership Interests and Registrations [Member]
Finite-Lived Intangible Assets [Line Items]
Gross costs - indefinite lived intangible assets	$ 11,849	$ 11,897
Disposals	(1,299)
Accumulated amortization - finite lived intangible assets	0	0
Net carrying amount - indefinite lived intangible assets	$ 10,550	$ 11,897