Net Investment In Direct Finance Leases (Gross Finance Lease Receivables By Categories Of Customers) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Gross Finance Lease Receivables [Line Items]
Gross finance lease receivables	$ 121,141	[1]	$ 103,887	[1]
Tier 1 [Member]
Gross Finance Lease Receivables [Line Items]
Gross finance lease receivables	92,968		85,990
Tier 2 [Member]
Gross Finance Lease Receivables [Line Items]
Gross finance lease receivables	$ 28,173		$ 17,897

[1] At the inception of the lease, the Company records the total minimum lease payments, executory costs, if any, and unguaranteed residual value as gross finance lease receivables. The gross finance lease receivables are reduced as customer payments are received.  There was no unguaranteed residual value at September 30, 2014 and approximately $0.1 million at December 31, 2013 included in gross finance lease receivables. There were no executory costs included in gross finance lease receivables as of September 30, 2014 and December 31, 2013.