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Intangible Assets - Schedule Of Estimated Aggregate Amortization Expense for Intangible Assets (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2019 $ 24,835
2020 21,159
2021 19,547
2022 17,412
2023 $ 16,117