Goodwill and Other Intangible Assets (Schedule of Expected Impairment Charges and Amortization Expense) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Total	$ 65,868
Other intangible assets | Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Total	51,542
Other intangible assets | Investments in other ventures, under equity method
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Total	14,326
Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Indefinite lived	26,186
Other intangible assets | Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Indefinite lived	17,039
Other intangible assets | Investments in other ventures, under equity method
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
Indefinite lived	9,147
Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
2020	8,272
2021	7,085
2022	6,697
2023	5,804
2024	4,910
2024 and thereafter	6,914
Total remaining amortization expense	39,682
Other intangible assets | Other intangible assets
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
2020	6,317
2021	5,990
2022	5,602
2023	5,173
2024	4,716
2024 and thereafter	6,705
Total remaining amortization expense	34,503
Other intangible assets | Investments in other ventures, under equity method
Schedule of Finite and Indefinite-lived Intangible Assets [Line Items]
2020	1,955
2021	1,095
2022	1,095
2023	631
2024	194
2024 and thereafter	209
Total remaining amortization expense	$ 5,179