Earnings Per Share (Details) (USD $)	3 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Quarter	Sep. 30, 2013 Quarter	Sep. 30, 2012
Earnings Per Share [Abstract]
Dividend declared	$ 0.22	$ 0.19	$ 0.88	$ 0.76	$ 0.72
Number of quarterly dividends declared			4	4