Summary of Significant Accounting Policies - Intangible Assets Weighted Average Amortization Periods (Detail)	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012
Customer Related [Member]
Finite Lived Intangible Assets Amortization [Line Items]
Amortization periods for identifiable intangible assets	10 years 2 months 12 days	20 years
Intellectual Property/Trade Secrets [Member]
Finite Lived Intangible Assets Amortization [Line Items]
Amortization periods for identifiable intangible assets	13 years	0 years
Non-Compete Agreements [Member]
Finite Lived Intangible Assets Amortization [Line Items]
Amortization periods for identifiable intangible assets	3 years	0 years
Trade Name [Member]
Finite Lived Intangible Assets Amortization [Line Items]
Amortization periods for identifiable intangible assets	30 years	0 years
Technology [Member]
Finite Lived Intangible Assets Amortization [Line Items]
Amortization periods for identifiable intangible assets	25 years 1 month 6 days	25 years 1 month 6 days