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Subsequent Events Subsequent Events - Redemption of Senior Notes (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Sep. 30, 2015
Subsequent Events [Abstract]    
Debt Instrument, Interest Rate, Stated Percentage 8.50%  
Senior Notes $ 45.5 $ 45.5
Debt Instrument, Call Feature, Redemption Price Percentage of Principal 100.00%