Quarterly report pursuant to Section 13 or 15(d)

Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details)

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Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Nov. 30, 2015
Aug. 31, 2015
Indefinite And Finite Lived Intangible Assets [Line Items]    
Accumulated Amortization $ 169,279 $ 165,486
Other intangibles, gross 468,671 474,248
Other intangibles, net 299,392 308,762
Tradenames    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 111,464 112,437
Customer relationships    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 15 years  
Gross Carrying Value $ 298,790 302,518
Accumulated Amortization 135,452 132,007
Net Book Value $ 163,338 170,511
Patents    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 10 years  
Gross Carrying Value $ 30,757 30,899
Accumulated Amortization 20,535 19,928
Net Book Value $ 10,222 10,971
Trademarks and tradenames    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 18 years  
Gross Carrying Value $ 21,424 21,604
Accumulated Amortization 7,318 7,055
Net Book Value $ 14,106 14,549
Other intangibles    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 3 years  
Gross Carrying Value $ 6,236 6,790
Accumulated Amortization 5,974 6,496
Net Book Value $ 262 $ 294