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Other Assets - Schedule of Other Assets (Footnote) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Other Assets [Abstract]    
Escrow deposit   $ 52.9
Other prepaid expense $ 35.9 $ 41.3
Period required to remit collections on pledged advances 2 years  
Allowance for financing notes $ 0.3