Segment Information (Schedule Of Revenues By Product Line Percentages) (Details)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Segment	Mar. 31, 2012
Segment Reporting Information [Line Items]
Number of reportable business segments			1
Total percent of product line	100.00%	100.00%	100.00%	100.00%
Information Optimization Solutions
Segment Reporting Information [Line Items]
Percent of revenue by product line	97.00%	95.00%	97.00%	94.00%
Business Service Management Solutions
Segment Reporting Information [Line Items]
Percent of revenue by product line	3.00%	5.00%	3.00%	6.00%