Long-term Debt - Actual Ratios and Required Ratios Under Financial Covenants (Detail) (Senior Credit Facility [Member])	3 Months Ended
	Feb. 28, 2014
Maximum [Member]
Debt Instrument [Line Items]
Interest coverage ratio, as defined under the Senior Credit Facility	4.25
Leverage ratio, as defined under the Senior Credit Facility	3.03
Interest coverage ratio, as defined under the Senior Credit Facility	2.40
Leverage ratio, as defined under the Senior Credit Facility	4.25
Minimum [Member]
Debt Instrument [Line Items]
Interest coverage ratio, as defined under the Senior Credit Facility	1.00
Leverage ratio, as defined under the Senior Credit Facility	1.00
Interest coverage ratio, as defined under the Senior Credit Facility	1.00
Leverage ratio, as defined under the Senior Credit Facility	1.00