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Receivables (Activity Related To Allowance For Credit Losses) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Allowance for Loan and Lease Losses [Roll Forward]    
Allowance for credit losses, beginning balance $ 1,746us-gaap_LoansAndLeasesReceivableAllowance $ 1,341us-gaap_LoansAndLeasesReceivableAllowance
Change in loan loss provision (580)us-gaap_ProvisionForLoanAndLeaseLosses 405us-gaap_ProvisionForLoanAndLeaseLosses
Allowance for credit losses, ending balance $ 1,166us-gaap_LoansAndLeasesReceivableAllowance $ 1,746us-gaap_LoansAndLeasesReceivableAllowance