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Goodwill and Other Intangible Assets (Other Intangible Assets) (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Amortized Intangible Assets [Line Items]        
Goodwill and intangible asset impairment charge $ 26,753 $ 1,916 $ 31,568 $ 29,828
Amortization of Intangible Assets        
Amortization of intangible assets 15,981 $ 14,150 43,807 $ 42,642
Estimated amortization of intangible assets, remainder of 2021 16,000   16,000  
Estimated amortization of intangible assets, 2022 60,000   60,000  
Estimated amortization of intangible assets, 2023 51,000   51,000  
Estimated amortization of intangible assets, 2024 40,000   40,000  
Estimated amortization of intangible assets, 2025 33,000   33,000  
Estimated amortization of intangible assets, after 2025 $ 48,000   $ 48,000