Subsequent Event Subsequent Events (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jul. 29, 2014 Subsequent Event
Subsequent Event
Basic earnings per common share	$ 0.18	$ 0.08	$ 3.10	$ 2.57
Basic earnings per common share, pro forma effect of stock split	$ 0.12	$ 0.05	$ 2.07	$ 1.71
Diluted earnings per common share	$ 0.18	$ 0.08	$ 3.06	$ 2.54
Diluted earnings per common share, pro forma effect of stock split	$ 0.12	$ 0.05	$ 2.04	$ 1.69
3-for-2 common stock split					0.67