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Goodwill and Related Intangible Assets (Schedule of Future Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2020 $ 18,362
2021 11,584
2022 10,721
2023 10,611
2024 $ 10,382