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Segment Information (Schedule Of Revenue Disaggregate By Activities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Aug. 31, 2017
Segment Reporting Information [Line Items]      
Revenue $ 225,356 $ 209,758 $ 185,256
Services And Products [Member]      
Segment Reporting Information [Line Items]      
Revenue 128,775 129,275 133,571
Subscriptions [Member]      
Segment Reporting Information [Line Items]      
Revenue 74,687 58,052 30,892
Royalties [Member]      
Segment Reporting Information [Line Items]      
Revenue 16,068 17,061 15,539
Leases And Other [Member]      
Segment Reporting Information [Line Items]      
Revenue 5,826 5,370 5,254
Operating Segments [Member] | Enterprise Division [Member]      
Segment Reporting Information [Line Items]      
Revenue 170,650 159,116 135,880
Operating Segments [Member] | Enterprise Division [Member] | Services And Products [Member]      
Segment Reporting Information [Line Items]      
Revenue 104,996 103,214 102,554
Operating Segments [Member] | Enterprise Division [Member] | Subscriptions [Member]      
Segment Reporting Information [Line Items]      
Revenue 52,536 42,465 20,452
Operating Segments [Member] | Enterprise Division [Member] | Royalties [Member]      
Segment Reporting Information [Line Items]      
Revenue 13,118 13,437 12,874
Operating Segments [Member] | Education Practice [Member]      
Segment Reporting Information [Line Items]      
Revenue 48,880 45,272 44,122
Operating Segments [Member] | Education Practice [Member] | Services And Products [Member]      
Segment Reporting Information [Line Items]      
Revenue 23,779 26,061 31,017
Operating Segments [Member] | Education Practice [Member] | Subscriptions [Member]      
Segment Reporting Information [Line Items]      
Revenue 22,151 15,587 10,440
Operating Segments [Member] | Education Practice [Member] | Royalties [Member]      
Segment Reporting Information [Line Items]      
Revenue 2,950 3,624 2,665
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]      
Segment Reporting Information [Line Items]      
Revenue 157,754 145,890 122,309
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member] | Services And Products [Member]      
Segment Reporting Information [Line Items]      
Revenue 102,557 100,730 99,616
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member] | Subscriptions [Member]      
Segment Reporting Information [Line Items]      
Revenue 52,536 42,465 20,452
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member] | Royalties [Member]      
Segment Reporting Information [Line Items]      
Revenue 2,661 2,695 2,241
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]      
Segment Reporting Information [Line Items]      
Revenue 12,896 13,226 13,571
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member] | Services And Products [Member]      
Segment Reporting Information [Line Items]      
Revenue 2,439 2,484 2,938
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member] | Royalties [Member]      
Segment Reporting Information [Line Items]      
Revenue 10,457 10,742 10,633
Corporate And Eliminations [Member]      
Segment Reporting Information [Line Items]      
Revenue 5,826 5,370 5,254
Corporate And Eliminations [Member] | Leases And Other [Member]      
Segment Reporting Information [Line Items]      
Revenue $ 5,826 $ 5,370 $ 5,254