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Goodwill and Other Intangible Assets (Schedule of Estimated Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2019 $ 6,235
2020 6,235
2021 6,163
2022 3,949
2023 $ 3,228