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Goodwill and Other Identifiable Intangible Assets, Net Amortization Expense (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
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization expense $ 800us-gaap_AmortizationOfIntangibleAssets $ 900us-gaap_AmortizationOfIntangibleAssets $ 1,537us-gaap_AmortizationOfIntangibleAssets $ 1,891us-gaap_AmortizationOfIntangibleAssets
2015 six months 1,378us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear   1,378us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear  
2016 1,927us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo   1,927us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 901us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree   901us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 482us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour   482us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 438us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive   438us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
2020 $ 168us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive   $ 168us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive