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Business and Summary of Significant Accounting Policies (Schedule of Expected Amortization Expense for Acquired Leasehold Interest Intangible Asset) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accounting Policies [Abstract]    
2018 $ 384  
2019 384  
2020 384  
2021 384  
2022 384  
Thereafter 4,771  
Net $ 6,691 $ 7,075