Goodwill And Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 21,069	$ 51,714
Accumulated Amortization	11,772	38,662
Net Carrying Amount	9,297	13,052
Accumulated Intangibles Impairment Charge		20,820
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,982	43,131
Accumulated Amortization	10,436	33,716
Net Carrying Amount	6,546	9,415
Accumulated Intangibles Impairment Charge		18,657
Trademarks And Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	133	2,181
Accumulated Amortization		2,051
Net Carrying Amount	133	130
Accumulated Intangibles Impairment Charge		1,498
Licenses And Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,397	5,825
Accumulated Amortization	779	2,338
Net Carrying Amount	2,618	3,487
Accumulated Intangibles Impairment Charge		665
Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	557	577
Accumulated Amortization	557	557
Net Carrying Amount		$ 20
Accumulated Intangibles Impairment Charge