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Discontinued Operations (Schedule of Operating Results) (Parenthetical) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]        
Income from discontinued operations, tax $ 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 131us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 633us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation
Gain on sale of discontinued operations, tax $ 5,218us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation