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Discontinued Operations and Divestiture Activities Narrative (Details) (USD $)
9 Months Ended 0 Months Ended 3 Months Ended 9 Months Ended 0 Months Ended
May 31, 2014
May 31, 2013
Dec. 13, 2013
Electrical
May 31, 2014
Electrical
May 31, 2013
Electrical
May 31, 2014
Electrical
May 31, 2013
Electrical
Apr. 28, 2014
Viking People [Member]
Jun. 13, 2014
Recreational vehicle [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations and Divestiture Activities[Line Items]                  
Proceeds from sale of businesses, net of transaction costs $ 252,773,000 $ 4,854,000           $ 400,000 $ 35,500,000
Gain on disposal     34,500,000 0 0 34,459,000 0    
Future cash outflow of discontinued operations     6,000,000            
Estimated proceeds net of transaction costs     $ 225,000,000