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Long-Term Debt and Capital Lease Obligations - Consumer Loans Facility (Details) - Grupo Finmart [Member] - USD ($)
$ in Millions
12 Months Ended
Feb. 17, 2014
Sep. 30, 2015
Debt Instrument [Line Items]    
Restricted cash for interest and trust maintenance costs $ 2.1  
Consumer loans facility due 2019 [Member]    
Debt Instrument [Line Items]    
Term of agreement 2 years  
Term of debt   2 years
Consumer loans facility due 2019 [Member] | Mexican Interbank Equilibrium [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate   2.50%
Interest rate at period end   5.80%
Consumer loans facility due 2019 [Member] | Intangible Assets, Net [Member]    
Debt Instrument [Line Items]    
Deferred financing costs   $ 1.8