Discontinued Operations (Schedule of Operating Results) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations And Disposal Groups [Abstract]
Revenues	$ 13,923	$ 33,905	$ 26,452
Income from discontinued operations, net of tax of $633, $1,269 and $522, respectively	1,041	2,337	914
Gain on sale of discontinued operations, net of tax of $5,218	8,563
Net income from discontinued operations, net of tax	$ 9,604	$ 2,337	$ 914
Earnings per share:
Basic	$ 0.80	$ 0.20	$ 0.07
Diluted	$ 0.80	$ 0.19	$ 0.08