A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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Income Taxes (Details Textual) (USD $)	12 Months Ended
Income Taxes (Details Textual) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009	Sep. 30, 2008	Oct. 01, 2007
Schedule of Equity Method Investments [Line Items]
Dividends received		$ 7,274,000	$ 3,841,000	$ 1,634,000
Income Taxes (Textual) [Abstract]
Effective income tax rate	35.20%	35.30%	35.80%	35.00%
Recognized liability on adoption		0	51,000	106,000	486,000	106,000
Penalties and interest						8,600
Additional uncertain tax position				380,000
Albemarle & Bond Holdings [Member]
Schedule of Equity Method Investments [Line Items]
Dividends received		3,200,000	2,300,000	1,600,000
Cash Converters International Limited [Member]
Schedule of Equity Method Investments [Line Items]
Dividends received		$ 4,100,000	$ 1,500,000