Allowance for Credit Losses (Narratives) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Allowance for Credit Losses [Line Items]        
Loans and Leases Receivable, Allowance $ 8,467 [1] $ 6,488 [1] $ 5,353 [1] $ 7,718
Threshold Period Past Due for Write-off of Financing Receivable 121 days      
Threshold Period Past Due For Recognition Of Interest Income 90 days      
Net charge-offs to average total finance receivables 1.41% [2] 1.11% [2] 1.81% [2]  
Finance Receivables 90 Days or More Past Due and Still Accruing 0 0    
Commercial Loan [Member]
        
Allowance for Credit Losses [Line Items]        
Loans and Leases Receivable, Allowance $ 0 $ 0 $ 0  
[1]

At December 31, 2013, 2012 and 2011, there was no allowance for credit losses allocated to loans.
[2]

Total finance receivables include net investment in direct financing leases and loans. For purposes of asset quality and allowance calculations, the effects of (i) the allowance for credit losses and (ii) initial direct costs and fees deferred are excluded.