Repurchase of Common Stock - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Nov. 30, 2013	May 31, 2014	Oct. 01, 2013	Jun. 23, 2014
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 25
Stock Repurchased and Retired During Period, Shares	369,900
Stock Repurchased and Retired During Period, Value	13.3
Prior Periods
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Shares		89,569
Stock Repurchased and Retired During Period, Value		1.3
Share Repurchase Plan | Common Stock
Equity, Class of Treasury Stock [Line Items]
Common stock share purchase, reduction		0.1
Share Repurchase Plan | Additional Paid-in Capital
Equity, Class of Treasury Stock [Line Items]
Common stock share purchase, reduction		2.2
Share Repurchase Plan | Retained Earnings
Equity, Class of Treasury Stock [Line Items]
Common stock share purchase, reduction		12.3
Maximum
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount				$ 50