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Goodwill And Intangible Assets (Summary Of Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning balance | $ 19,715 | [1],[2] | $ 21,281 |
Foreign currency translation adjustment | 113 |  | (1,566) |
Goodwill, Ending balance | 19,828 |  | 19,715 | [1],[2]
Cinema [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning balance | 14,491 |  | 16,057 |
Foreign currency translation adjustment | 113 |  | (1,566) |
Goodwill, Ending balance | 14,604 |  | 14,491 |
Real Estate [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning balance | 5,224 |  | 5,224 |
Foreign currency translation adjustment |  |  |  |
Goodwill, Ending balance | $ 5,224 |  | $ 5,224 |
[1] | Certain 2015 balances have been reclassified to conform to the 2016 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).
[2] | Certain 2015 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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