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Business Combinations, Goodwill and Intangible Assets (Estimated Amortization Expense of Intangibles) (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Estimated amortization expense for each of the next five years is as follows:  
2021 $ 2,745
2022 1,990
2023 1,337
2024 751
2025 $ 337