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Operating Leases (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2010
Operating Leased Assets [Line Items]
Total rent expense	$ 2.2	$ 2.7	$ 3.0
Cost basis of office space available for lease	33.9
Carrying value of office space available for lease	12.8
Sublease payments made to the Company	3.2	2.4	3.2
Minimum [Member]
Operating Leased Assets [Line Items]
Operating lease term	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Operating lease term	9 years
FC Organizational Products [Member]
Operating Leased Assets [Line Items]
Lease income	$ 0.8

The gross amount of lessor property subject to or available for lease as of the balance sheet date.

The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.