XML 58 R36.htm IDEA: XBRL DOCUMENT v3.3.0.814
Basis Of Presentation And Summary Of Significant Accounting Policies (Property And Equipment) (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2013
Property Plant And Equipment [Line Items]      
Depreciation $ 3.4 $ 3.2 $ 3.1
Cost of goods sold, depreciation $ 0.8 $ 1.0 $ 1.2
Minimum [Member] | Buildings And Improvements [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 10 years    
Minimum [Member] | Machinery, Equipment And Vehicles [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum [Member] | Vehicles [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum [Member] | Furniture And Fixtures [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum [Member] | Software and Computer Equipment [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 3 years    
Maximum [Member] | Buildings And Improvements [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 40 years    
Maximum [Member] | Machinery, Equipment And Vehicles [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 15 years    
Maximum [Member] | Vehicles [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 5 years    
Maximum [Member] | Furniture And Fixtures [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 10 years    
Maximum [Member] | Software and Computer Equipment [Member]      
Property Plant And Equipment [Line Items]      
Property and equipment, useful life 5 years