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Goodwill and Other Intangible Assets (Other Intangible Assets) (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Amortized Intangible Assets [Line Items]    
Goodwill and intangible asset impairment charge $ 1,047 $ 16,401
Amortization of Intangible Assets    
Amortization of intangible assets 13,937 $ 14,165
Estimated amortization of intangible assets, remainder of 2021 38,000  
Estimated amortization of intangible assets, 2022 46,000  
Estimated amortization of intangible assets, 2023 38,000  
Estimated amortization of intangible assets, 2024 27,000  
Estimated amortization of intangible assets, 2025 21,000  
Estimated amortization of intangible assets, after 2025 $ 20,000