Long-Term Debt And Loans Payable (Schedule Of Long-Term Debt Future Sinking Fund Payments And Debt Maturities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
2020	$ 105,051
2021	58,252
2022	29,980
2023	17,072
2024	15,968
Thereafter	2,851,077
Long-Term Debt Interest Rate Range 0.00% To 0.99% [Member]
Debt Instrument [Line Items]
2020	670
2021	460
2022	461
2023	461
2024	252
Thereafter	1,170
Long-Term Debt Interest Rate Range 1.00% To 1.99% [Member]
Debt Instrument [Line Items]
2020	1,016
2021	978
2022	957
2023	835
2024	764
Thereafter	6,183
Long-Term Debt Interest Rate Range 2.00% To 2.99% [Member]
Debt Instrument [Line Items]
2020	1,863
2021	1,913
2022	1,964
2023	2,017
2024	1,619
Thereafter	6,298
Long-Term Debt Interest Rate Range 3.00% To 3.99% [Member]
Debt Instrument [Line Items]
2020	91,524
2021	41,287
2022	24,622
2023	2,065
2024	1,767
Thereafter	1,133,776
Long-Term Debt Interest Rate Range 4.00% To 4.99% [Member]
Debt Instrument [Line Items]
2020	292
2021	168
2022	94
2023	99
2024	103
Thereafter	1,554,035
Long-Term Debt Interest Rate Range 5.00% To 5.99% [Member]
Debt Instrument [Line Items]
2020	6,191
2021	6,215
2022	787
2023	10,811
2024	10,611
Thereafter	76,995
Long-Term Debt Interest Rate Range 6.00% To 6.99% [Member]
Debt Instrument [Line Items]
Thereafter	31,000
Long-Term Debt Interest Rate Range 7.00% To 7.99% [Member]
Debt Instrument [Line Items]
2020	574
2021	666
2022	374
Thereafter	29,137
Long-Term Debt Interest Rate Range 8.00% To 8.99% [Member]
Debt Instrument [Line Items]
2020	521
2021	1,665
2022	721
2023	784
2024	852
Thereafter	483
Long-Term Debt Interest Rate Range 9.00% To 9.99% [Member]
Debt Instrument [Line Items]
2020	2,400
2021	4,900
Thereafter	$ 12,000
Minimum [Member] \| Long-Term Debt Interest Rate Range 0.00% To 0.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	0.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 1.00% To 1.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	1.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 2.00% To 2.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	2.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 3.00% To 3.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	3.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 4.00% To 4.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	4.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 5.00% To 5.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	5.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 6.00% To 6.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	6.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 7.00% To 7.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	7.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 8.00% To 8.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	8.00%
Minimum [Member] \| Long-Term Debt Interest Rate Range 9.00% To 9.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	9.00%
Maximum [Member] \| Long-Term Debt Interest Rate Range 0.00% To 0.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	0.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 1.00% To 1.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	1.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 2.00% To 2.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	2.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 3.00% To 3.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	3.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 4.00% To 4.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	4.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 5.00% To 5.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	5.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 6.00% To 6.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	6.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 7.00% To 7.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	7.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 8.00% To 8.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	8.99%
Maximum [Member] \| Long-Term Debt Interest Rate Range 9.00% To 9.99% [Member]
Debt Instrument [Line Items]
Interest Rate Range	9.99%

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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