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Goodwill and Intangible Assets (Schedule of Estimated Aggregate Amortization Expense for Finite-Lived Intangible Assets) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Goodwill and Intangible Assets [Abstract]  
2017 $ 2,468
2018 2,468
2019 2,468
2020 2,468
2021 $ 503