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Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes
Statutory income tax rate	35.00%	35.00%	35.00%
Resolution of prior period tax items		1.00%	(1.00%)
Increase in tax rate resulting from - Valuation allowance		2.00%
Increases to the reserve for uncertain tax positions	2.00%	1.00%	1.00%
Decrease in tax rate resulting from - Foreign tax rate differentials, net of foreign tax credit utilization	(23.00%)	(19.00%)	(20.00%)
Effective income tax rate	16.00%	20.00%	15.00%

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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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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