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Business Segments and Foreign Operations (Summarized Information Of Reportable Segments) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Aug. 31, 2013
Aug. 31, 2012
Aug. 31, 2011
Segment Reporting Information [Line Items]      
Net sales $ 368,548 $ 342,784 $ 336,409
Income from operations 56,637 51,729 54,132
Depreciation and amortization expense 5,359 4,869 4,386
Interest income 506 261 228
Interest expense 693 729 1,076
Americas [Member]
      
Segment Reporting Information [Line Items]      
Net sales 180,544 177,394 169,881
Income from operations 39,383 39,455 39,085
Depreciation and amortization expense 4,189 3,458 2,702
Interest income 1 1 8
Interest expense 684 721 1,066
EMEA [Member]
      
Segment Reporting Information [Line Items]      
Net sales 135,984 116,936 125,400
Income from operations 31,213 23,524 27,846
Depreciation and amortization expense 959 1,224 1,377
Interest income 348 122 108
Asia-Pacific [Member]
      
Segment Reporting Information [Line Items]      
Net sales 52,020 48,454 41,128
Income from operations 9,308 8,458 6,509
Depreciation and amortization expense 200 177 187
Interest income 157 138 112
Interest expense 9 8 10
Corporate [Member]
      
Segment Reporting Information [Line Items]      
Income from operations (23,267) [1] (19,708) [1] (19,308) [1]
Depreciation and amortization expense $ 11 [1] $ 10 [1] $ 120 [1]
[1] Unallocated corporate expenses are general corporate overhead expenses not directly attributable to any one of the operating segments. These expenses are reported separate from the Company’s identified segments and are included in Selling, General and Administrative expenses on the Company’s consolidated statements of operations.