Employee Benefit Plans Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Sep. 30, 2013	Sep. 30, 2012
Compensation and Retirement Disclosure [Abstract]
Required service period to participate in defined contribution savings plan		1 year
Maximum match, as a percent of employees contribution		3.00%
Total expense recognized for employee benefit plans	$ 107	$ 524	$ 280	$ 273