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Earnings (Loss) Per Common Share - Additional Information (Details)
3 Months Ended
Dec. 31, 2014
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]  
Split of common stock ratio 2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Stock Options  
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]  
Number of Stock options 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember