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Investments (Schedule of Direct Financing Future Minimum Lease Payments for Capital Leases Table) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Investments [Abstract]  
2015 $ 92us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableCurrent
2016 131us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears
2017 140us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears
2018 150us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInFourYears
2019 574us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInFiveYears
2020 and thereafter 0us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter
Capital Leases, Future Minimum Payments Receivable, Total $ 1,087us-gaap_CapitalLeasesFutureMinimumPaymentsReceivable