Allowance for Credit Losses (Details Textuals) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Allowance for credit losses (Textuals)        
Financing Receivable, Allowance for Credit Losses 5.0 $ 4.5 $ 4.5 $ 4.5
The recorded investment in past-due finance lease receivables on nonaccrual status 1.1 2.2    
Recorded investments in finance receivables past due 90 days or more and still accruing interest 0 0    
The recorded investment in impaired notes receivable 4.1 4.1    
The recorded investment in impaired notes related allowance 4.1 4.1    
Minimum [Member]        
Allowance for credit losses (Textuals)        
Period required for considering financing receivable as non accrual status 60 days      
Period for placing financing receivables on non-accrual status 89 days      
Past Due Period Of Financing Receivable Accruing Interest 90 days      
Maximum [Member]        
Allowance for credit losses (Textuals)        
Period required for considering financing receivable as non accrual status 89 days      
Brazil        
Allowance for credit losses (Textuals)        
Financing Receivable, Recorded Investment, Current 105.0 149.9    
Finance Leases Financing Receivable [Member]        
Allowance for credit losses (Textuals)        
Financing Receivable, Allowance for Credit Losses 0.9 0.4 0.4 0.4
Financing Receivable, Individually Evaluated for Impairment 133.1   202.6  
Notes Receivable [Member]        
Allowance for credit losses (Textuals)        
Financing Receivable, Allowance for Credit Losses 4.1 4.1 4.1 4.1
Financing Receivable, Individually Evaluated for Impairment 8.5   $ 14.1