Operating Leases (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Operating Leased Assets [Line Items]
Total rent expense	$ 2.2	$ 2.3	$ 2.2
Cost basis of office space available for lease	35.8
Carrying value of office space available for lease	9.6
Sublease revenue	$ 4.4	$ 4.4	$ 3.9
Minimum [Member]
Operating Leased Assets [Line Items]
Operating lease term		1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Operating lease term	7 years
FC Organizational Products [Member]
Operating Leased Assets [Line Items]
Lease income	$ 0.7