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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, 2014
Aug. 31, 2013
Aug. 31, 2012
Segment Reporting Information [Line Items]      
Net sales $ 382,997 $ 368,548 $ 342,784
Income from operations 63,737 56,637 51,729
Depreciation and amortization expense 5,860 5,359 4,869
Interest income 596 506 261
Interest expense 1,002 693 729
Americas [Member]
      
Segment Reporting Information [Line Items]      
Net sales 180,806 180,544 177,394
Income from operations 41,356 39,383 39,455
Depreciation and amortization expense 4,229 4,189 3,458
Interest income 7 1 1
Interest expense 994 684 721
EMEA [Member]
      
Segment Reporting Information [Line Items]      
Net sales 151,368 137,360 116,936
Income from operations 34,003 30,174 23,524
Depreciation and amortization expense 1,363 960 1,224
Interest income 417 348 122
Asia-Pacific [Member]
      
Segment Reporting Information [Line Items]      
Net sales 50,823 50,644 48,454
Income from operations 10,364 8,995 8,458
Depreciation and amortization expense 244 200 177
Interest income 172 157 138
Interest expense 8 9 8
Corporate [Member]
      
Segment Reporting Information [Line Items]      
Income from operations (21,986) [1] (21,915) [1] (19,708) [1]
Depreciation and amortization expense $ 24 [1] $ 10 [1] $ 10 [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.