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Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
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Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets | $ 36,854 | $ 34,743 |
Less: Accumulated amortization | (26,667) | (24,854) |
Net intangible assets | 10,187 | 9,889 | [1]
Beneficial Leases [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets | 28,834 | 26,793 |
Less: Accumulated amortization | (21,651) | (20,108) |
Net intangible assets | 7,183 | 6,685 |
Trade Name [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets | 7,254 | 7,254 |
Less: Accumulated amortization | (4,551) | (4,300) |
Net intangible assets | 2,703 | 2,954 |
Other Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets | 766 | 696 |
Less: Accumulated amortization | (465) | (446) |
Net intangible assets | $ 301 | $ 250 |
[1] | Certain prior period amounts have been reclassified to conform to the current period presentation (see Note 1 - The Company and Basis of Presentation - Reclassifications)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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