Investments in Unconsolidated Companies (Schedule of Long-term Debt Maturities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Schedule of Equity Method Investments [Line Items]
2020	$ 3,883
2021	12,463
2022	603,611
2023	253,817
2024	304,036
Thereafter	1,756,325
Long-term Debt	2,934,135
Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
2020	0
2021	27,735
2022	122
2023	126
2024	131
Thereafter	36,736
Long-term Debt	$ 64,850

Face Value of Debt, Maturity Total

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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