Fair Value Measurements and Risk - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Mar. 31, 2012	Feb. 28, 2013 customer	Nov. 30, 2012 Maximum	Mar. 07, 2013 Term Loan B	Feb. 28, 2013 Term Loan B	Nov. 30, 2012 Term Loan B	Feb. 28, 2013 Not Designated as Hedging Instrument	Nov. 30, 2012 Foreign Exchange Contract [Member]	Feb. 28, 2013 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Feb. 28, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Feb. 28, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Feb. 28, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]
Fair Value of Financial Instruments [Line Items]
Number or customers who represent more than 10% of the Company's net trade receivables		0
Number or customers who represent more than 10% of the Company's net sales		0
Note Receivable Period	5 years
Face Value of Note Receivable		$ 3.8
Fair Value of Note Receivable		3.8							3.8	0	0	3.8
Assets, Fair Value Disclosure									3.8	0	0	3.8
Term Loan B				195.5	200.0	200.0
Foreign currency exchange contracts period							1 year
Notional amount of outstanding foreign exchange contracts		2.4
Foreign currency contracts fair value			0.1						0	0	0	0
Derivative Asset, Notional Amount								12.8
Derivative Liability, Notional Amount								$ 8.6