Long-Term Debt And Loans Payable (Schedule Of Long-Term Debt Future Sinking Fund Payments And Debt Maturities) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
2019	$ 144,545
2020	92,758
2021	38,561
2022	25,210
2023	27,800
Thereafter	1,864,786
Long-Term Debt Interest Rate Range 0.00% To 0.99% [Member]
Debt Instrument [Line Items]
2019	464
2020	462
2021	463
2022	466
2023	460
Thereafter	1,417
Long-Term Debt Interest Rate Range 1.00% To 1.99% [Member]
Debt Instrument [Line Items]
2019	1,222
2020	1,158
2021	910
2022	888
2023	767
Thereafter	6,643
Long-Term Debt Interest Rate Range 2.00% To 2.99% [Member]
Debt Instrument [Line Items]
2019	51,814
2020	1,863
2021	1,913
2022	1,965
2023	2,017
Thereafter	7,916
Long-Term Debt Interest Rate Range 3.00% To 3.99% [Member]
Debt Instrument [Line Items]
2019	2,758
2020	52,553
2021	2,591
2022	2,538
2023	1,910
Thereafter	730,076
Long-Term Debt Interest Rate Range 4.00% To 4.99% [Member]
Debt Instrument [Line Items]
2019	50,403
2020	16,616
2021	15,297
2022	237
2023	11,055
Thereafter	849,458
Long-Term Debt Interest Rate Range 5.00% To 5.99% [Member]
Debt Instrument [Line Items]
2019	36,183
2020	18,178
2021	8,456
2022	18,029
2023	10,807
Thereafter	195,562
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]
2019	527
2020	615
2021	666
2022	366
Thereafter	29,390
Long-Term Debt Interest Rate Range 8.00% To 8.99% [Member]
Debt Instrument [Line Items]
2019	474
2020	613
2021	1,665
2022	721
2023	784
Thereafter	1,324
Long-Term Debt Interest Rate Range 9.00% To 9.99% [Member]
Debt Instrument [Line Items]
2019	700
2020	700
2021	6,600
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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