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Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | $ 37,136 | $ 37,009 |
Less: Accumulated amortization | (27,426) | (26,972) |
Net intangible assets other than goodwill | 9,710 | 10,037 | [1]
Beneficial Leases [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 28,797 | 28,671 |
Less: Accumulated amortization | (22,243) | (21,870) |
Net intangible assets other than goodwill | 6,554 | 6,801 |
Trade Name [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 7,254 | 7,254 |
Less: Accumulated amortization | (4,710) | (4,634) |
Net intangible assets other than goodwill | 2,544 | 2,620 |
Other Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 1,085 | 1,084 |
Less: Accumulated amortization | (473) | (468) |
Net intangible assets other than goodwill | $ 612 | $ 616 |
[1] | Certain 2016 balances have been reclassified to conform to the 2017 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).

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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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