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Net Investment In Finance And Sales-type Leases (Minimum Future Lease Payments On Finance And Sales-type Leases) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Net Investment In Finance And Sales-type Leases [Abstract]  
2016 $ 93,726
2017 85,143
2018 83,656
2019 75,255
2020 60,865
Thereafter 135,234
Minimum future lease payments on finance and sales-type leases $ 533,879