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Goodwill and Other Intangible Assets (Schedule of Expected Impairment Charges and Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Other intangible assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Expected amortization of other intangible assets $ 50,996
Other intangible assets | Goodwill And Other Intangible Assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Expected amortization of other intangible assets 38,628
Other intangible assets | Equity Method Investment, Nonconsolidated Investee or Group of Investees  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Expected amortization of other intangible assets 12,368
Other intangible assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Indefinite lived 19,414
Other intangible assets | Goodwill And Other Intangible Assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Indefinite lived 10,269
Other intangible assets | Equity Method Investment, Nonconsolidated Investee or Group of Investees  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
Indefinite lived 9,145
Other intangible assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
2021 7,085
2022 6,697
2023 5,804
2024 4,910
2025 2,000
2025 and thereafter 5,086
Total remaining amortization expense 31,582
Other intangible assets | Goodwill And Other Intangible Assets  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
2021 5,990
2022 5,602
2023 5,173
2024 4,716
2025 1,976
2025 and thereafter 4,902
Total remaining amortization expense 28,359
Other intangible assets | Equity Method Investment, Nonconsolidated Investee or Group of Investees  
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]  
2021 1,095
2022 1,095
2023 631
2024 194
2025 24
2025 and thereafter 184
Total remaining amortization expense $ 3,223