Income and other Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income tax expense	$ (175)	$ (456)	$ (22)	$ 1,852
Income tax expense, discontinued operations	$ 200	$ 1,600	$ (33)	$ (26,500)
Effective tax rate	(12.90%)	(49.60%)	(2.40%)	(33.80%)
Income tax penalties and interest accrued	$ 400		$ 400		$ 300