Acquisitions (Go Cash) (Details) (USD $)	12 Months Ended			0 Months Ended				12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2014 Go Cash, LLC [Member]	Dec. 19, 2013 Go Cash, LLC [Member]	Nov. 12, 2013 Go Cash, LLC [Member]	Dec. 20, 2012 Go Cash, LLC [Member]	Sep. 30, 2014 Go Cash, LLC [Member]	Sep. 30, 2013 Go Cash, LLC [Member]	Dec. 31, 2013 Go Cash, LLC [Member]
Business Acquisition [Line Items]
Liabilities assumed							$ 200,000		$ 202,000
Contingent consideration arrangements, range of outcomes, period							4 years
Total consideration to be transferred							55,600,000
Deferred consideration, future payment, multiplier							6.0
Expected minimum payments							50,800,000
Payment for business acquisition					5,000,000	6,000,000	27,800,000		0
Deferred consideration				12,000,000				12,000,000
Equity interest issued, shares							1,400,198
Contingent consideration liability										4,800,000
Reduction in contingent consideration liability	$ 4,792,000	$ 0	$ 0	$ 4,800,000				$ 4,800,000