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Minimum Future Rental Collections (Schedule Of Future Minimum Rental Income Under Operating Leases) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Minimum Future Rental Collections [Abstract]  
2017 $ 8,325
2018 7,774
2019 6,987
2020 5,724
2021 5,137
Thereafter 26,780
Total future minimum rental income $ 60,727