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Earnings Per Share - Additional Information (Details) - $ / shares
shares in Millions
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from the calculation of “Diluted net loss per common share attributable to controlling interest”   38.0  
Preferred Stock [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from the calculation of “Diluted net loss per common share attributable to controlling interest”     62.4
Restricted Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from the calculation of “Diluted net loss per common share attributable to controlling interest” 2.7 2.6 2.5
Equity Option      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from the calculation of “Diluted net loss per common share attributable to controlling interest” 1.3 1.3 0.6
Warrant [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from the calculation of “Diluted net loss per common share attributable to controlling interest” 1.8 3.0  
Share Price   $ 13.125