Goodwill and Other Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands			12 Months Ended
	Aug. 01, 2016	Aug. 01, 2015	Nov. 30, 2016	Nov. 30, 2015
Finite And Infinite Lived Intangible Assets [Line Items]
Total gross costs - intangible assets			$ 265,137	$ 273,368
Disposals			(1,379)	(1,227)
Impairment losses			(1,284)	(1,289)
Accumulated amortization - finite lived intangible assets			(56,003)	(45,069)
Total net carrying amount - intangible assets			206,471	225,783
Customer relationships [Member]
Finite And Infinite Lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets			125,381	127,667
Accumulated amortization - finite lived intangible assets			(42,283)	(34,754)
Net carrying amount - finite lived intangible assets			$ 83,098	$ 92,913
Weighted average remaining lives (years)			12 years 1 month	12 years 10 months 24 days
Trade name [Member]
Finite And Infinite Lived Intangible Assets [Line Items]
Gross costs - finite lived intangible assets			$ 128,052	$ 131,288
Accumulated amortization - finite lived intangible assets			(13,720)	(10,315)
Net carrying amount - finite lived intangible assets			$ 114,332	$ 120,973
Weighted average remaining lives (years)			31 years 4 months	32 years 4 months
Exchange and clearing organization membership interests and registrations [Member]
Finite And Infinite Lived Intangible Assets [Line Items]
Gross costs - indefinite lived intangible assets			$ 11,704	$ 14,413
Disposals			(1,379)	(1,227)
Impairment losses	$ (1,300)	$ (1,300)	(1,284)	(1,289)
Accumulated amortization - finite lived intangible assets			0	0
Net carrying amount - indefinite lived intangible assets			$ 9,041	$ 11,897