Note 7 - Segment Information (Details) $ in Thousands	9 Months Ended
	May. 31, 2015 USD ($)	Aug. 31, 2014 USD ($)
Note 7 - Segment Information (Details) [Line Items]
Number of Operating Segments	3
Goodwill (in Dollars)	$ 307,231	$ 285,608
UNITED STATES
Note 7 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	$ 211,869	179,434
Goodwill Percentage Per Segment	69.00%
Europe [Member]
Note 7 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	$ 92,732	103,032
Goodwill Percentage Per Segment	30.00%
Asia Pacific [Member]
Note 7 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	$ 2,630	$ 3,142
Goodwill Percentage Per Segment	1.00%