Employee Benefits (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2011 plan	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Compensation and Retirement Disclosure [Abstract]
Number of plans merged together | plan	2
Maximum annual contributions per employee, percent (up to)	75.00%
Employer discretionary contribution amount | $		$ 0	$ 0