Stock-Based Compensation (Stock Options Valuation) (Details) - Stock Options - $ / shares	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at beginning of period (in shares)	1,063,324	1,059,567	891,293
Outstanding at beginning of period, Weighted Average Exercise Price (usd per share)	$ 9.11	$ 7.37	$ 6.71	$ 7.37	$ 9.37
Granted (in shares)	327,500	272,906	312,850
Granted, Weighted Average Exercise Price (usd per share)	$ 9.74	$ 7.01	$ 2.95
Assumed - merger (shares)	367,229	0	0
Assumed - merger, Weighted Average Exercise Price (usd per share)	$ 14.19
Exercised (in shares)	(94,701)	(263,643)	(8,450)
Exercised, Weighted Average Exercise Price (usd per share)	$ 5.52	$ 4.31	$ 3.08
Forfeited (in shares)	(35,875)	(5,506)	(136,126)
Forfeited, Weighted Average Exercise Price (usd per share)	$ 24.71	$ 9.63	$ 15.75
Outstanding at end of period (in shares)	1,627,477	1,063,324	1,059,567
Outstanding at end of period, Weighted Average Exercise Price (usd per share)	$ 9.11	$ 7.37	$ 6.71	$ 7.37	$ 9.37
Exercisable at end of period (in shares)	1,002,421		874,591	674,237
Exercisable at end of period, weighted average exercise price (usd per share)	$ 9.74		$ 7.13	$ 8.18
Weighted average fair value of options granted during the period (usd per share)	$ 5.91	$ 4.38	$ 1.82