XML 31 R47.htm IDEA: XBRL DOCUMENT v2.4.0.8
Contingencies and Litigation - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Feb. 28, 2014
Aug. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Outstanding letters of credit $ 10.6 $ 10.7
Discounted present value of future minimum lease payments 24.8  
Electrical
    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discounted present value of future minimum lease payments $ 14.5