Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands			3 Months Ended	12 Months Ended
	Aug. 01, 2017	Aug. 01, 2016	Feb. 28, 2017	Nov. 30, 2017	Nov. 30, 2016
Trade name
Total gross costs - intangible assets				$ 264,946	$ 265,137
Disposals					(1,379)
Impairment losses				(613)	(1,284)
Accumulated amortization - finite lived intangible assets				(68,540)	(56,003)
Total net carrying amount - intangible assets				195,793	206,471
Customer relationships
Trade name
Gross costs - finite lived intangible assets				126,412	125,381
Accumulated amortization - finite lived intangible assets				(50,983)	(42,283)
Net carrying amount - finite lived intangible assets				$ 75,429	$ 83,098
Weighted average remaining lives (years)				11 years 4 months	12 years 1 month
Trade name [Member]
Trade name
Gross costs - finite lived intangible assets				$ 129,370	$ 128,052
Accumulated amortization - finite lived intangible assets				(17,557)	(13,720)
Net carrying amount - finite lived intangible assets				$ 111,813	$ 114,332
Weighted average remaining lives (years)				30 years 4 months	31 years 4 months
Exchange and clearing organization membership interests and registrations
Trade name
Gross costs - indefinite lived intangible assets				$ 9,164	$ 11,704
Disposals					(1,379)
Impairment losses	$ (44)	$ (1,300)	$ (569)	(613)	(1,284)
Accumulated amortization - finite lived intangible assets				0	0
Net carrying amount - indefinite lived intangible assets				$ 8,551	$ 9,041