Share-Based Compensation - Stock Option Activity (Details) (USD $)	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares Awarded, Granted	0
Share Price	$ 15.06
Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options	$ 1,200,000		$ 1,100,000
Fair value of options vested	0
Number of Stock Options, Beginning balance	557,427
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(346)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 7.42
ShareBased Compensation Arrangement By ShareBased Payment Award,Options, Exercises In Period, Weighted Average Grant Date Fair Value	$ 3.64
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	3,000
Number of Stock Options, Cancelled/Forfeited	(11,681)
Number of Stock Options, Ending balance	545,400	557,427
Weighted Average Exercise Price, Beginning balance	$ 12.81
Weighted Average Exercise Price, Granted	$ 0.00
Weighted Average Exercise Price, Cancelled/Forfeited	$ 19.00
Weighted Average Exercise Price, Ending balance	$ 12.68	$ 12.81
Weighted Average Grant Date Fair Value, Beginning balance	$ 5.44
Weighted Average Grant Date Fair Value, Granted	$ 0.00
Weighted Average Grant Date Fair Value, Cancelled/Forfeited	$ 6.65
Weighted Average Grant Date Fair Value, Ending balance	$ 5.41	$ 5.44
Weighted Average Remaining Life, Beginning balance	5 years 0 months 0 days	5 years 1 month 6 days
Weighted Average Remaining Life, Ending balance	5 years 0 months 0 days	5 years 1 month 6 days
Aggregate Intrinsic Value, Beginning balance	1,996,000	1,620,000
Aggregate Intrinsic Value, Ending balance	1,996,000	1,620,000
Options, Vested and exercisable, Outstanding		231,663
Options, Vested and exercisable, Weighted Average Exercise Price		$ 15.22
Options, Vested and exercisable, Weighted Average Grant Date Fair Value	$ 5.81
Options, Vested and exercisable, Weighted Average Remaining Contractual Term	3 years 9 months 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		604,000
Options, Vested and expected to vest, Outstanding		522,652
Options, Vested and expected to vest, Weighted Average Exercise Price		$ 12.76
Options, Vested and expected to vest, Weighted Average Grant Date Fair Value	$ 5.42
Options, Vested and expected to vest, Exercisable, Weighted Average Remaining Life	3 years 9 months 20 days
Options, Vested and expected to vest, Aggregate Intrinsic Value		$ 1,899,000